Confused pairs
Incorrect answers between two species (undirected). With a country selected, only mix-ups from games in that country are counted, and only pairs where both species are on that country's checklist are shown.
| Species A (lower id) | Species B (higher id) | Total wrong | A was target → picked B | B was target → picked A |
|---|---|---|---|---|
| Nuttall's Woodpecker Dryobates nuttallii | Ladder-backed Woodpecker Dryobates scalaris | 12 | 3 | 9 |
| Louisiana Waterthrush Parkesia motacilla | Northern Waterthrush Parkesia noveboracensis | 10 | 4 | 6 |
| California Quail Callipepla californica | Gambel's Quail Callipepla gambelii | 9 | 5 | 4 |
| Boreal Chickadee Poecile hudsonicus | Siberian Tit Poecile cinctus | 8 | 2 | 6 |
| Townsend's Storm-Petrel Hydrobates socorroensis | Band-rumped Storm-Petrel Hydrobates castro | 7 | 3 | 4 |
| Jabiru Jabiru mycteria | Wood Stork Mycteria americana | 7 | 7 | 0 |
| Western Wood-Pewee Contopus sordidulus | Eastern Wood-Pewee Contopus virens | 7 | 3 | 4 |
| Grey-cheeked Thrush Catharus minimus | Bicknell's Thrush Catharus bicknelli | 7 | 1 | 6 |
| Chimney Swift Chaetura pelagica | Vaux's Swift Chaetura vauxi | 7 | 4 | 3 |
| Least Flycatcher Empidonax minimus | Dusky Flycatcher Empidonax oberholseri | 7 | 5 | 2 |
| Pacific Wren Troglodytes pacificus | Winter Wren Troglodytes hiemalis | 7 | 5 | 2 |
| Oahu Amakihi Chlorodrepanis flava | Kauai Amakihi Chlorodrepanis stejnegeri | 7 | 4 | 3 |
| Hawaii Akepa Loxops coccineus | Maui Akepa Loxops ochraceus | 7 | 1 | 6 |
| Black Storm-Petrel Hydrobates melania | Tristram's Storm-Petrel Hydrobates tristrami | 7 | 1 | 6 |
| Red-tailed Hawk Buteo jamaicensis | Ferruginous Hawk Buteo regalis | 7 | 3 | 4 |
| Alder Flycatcher Empidonax alnorum | Willow Flycatcher Empidonax traillii | 6 | 3 | 3 |
| Townsend's Storm-Petrel Hydrobates socorroensis | Ainley's Storm-Petrel Hydrobates cheimomnestes | 6 | 2 | 4 |
| Kittlitz's Murrelet Brachyramphus brevirostris | Marbled Murrelet Brachyramphus marmoratus | 6 | 4 | 2 |
| Cassin's Vireo Vireo cassinii | Blue-headed Vireo Vireo solitarius | 6 | 4 | 2 |
| Grey Flycatcher Empidonax wrightii | Dusky Flycatcher Empidonax oberholseri | 6 | 1 | 5 |
| Chinese Egret Egretta eulophotes | Snowy Egret Egretta thula | 6 | 4 | 2 |
| Blue-grey Gnatcatcher Polioptila caerulea | Black-tailed Gnatcatcher Polioptila melanura | 6 | 1 | 5 |
| Magnificent Frigatebird Fregata magnificens | Great Frigatebird Fregata minor | 6 | 2 | 4 |
| Western Meadowlark Sturnella neglecta | Chihuahuan Meadowlark Sturnella lilianae | 6 | 0 | 6 |
| Canyon Towhee Melozone fusca | California Towhee Melozone crissalis | 6 | 4 | 2 |
| Ash-throated Flycatcher Myiarchus cinerascens | Great Crested Flycatcher Myiarchus crinitus | 6 | 2 | 4 |
| Great Crested Flycatcher Myiarchus crinitus | Brown-crested Flycatcher Myiarchus tyrannulus | 6 | 3 | 3 |
| Western Screech-Owl Megascops kennicottii | Eastern Screech-Owl Megascops asio | 6 | 4 | 2 |
| American Crow Corvus brachyrhynchos | Fish Crow Corvus ossifragus | 6 | 1 | 5 |
| Broad-winged Hawk Buteo platypterus | Hawaiian Hawk Buteo solitarius | 6 | 4 | 2 |
| Kelp Gull Larus dominicanus | Great Black-backed Gull Larus marinus | 6 | 6 | 0 |
| Red-shouldered Hawk Buteo lineatus | Broad-winged Hawk Buteo platypterus | 5 | 1 | 4 |
| Wedge-tailed Shearwater Ardenna pacifica | Sooty Shearwater Ardenna grisea | 5 | 4 | 1 |
| Brown Noddy Anous stolidus | Black Noddy Anous minutus | 5 | 0 | 5 |
| Common Greenshank Tringa nebularia | Greater Yellowlegs Tringa melanoleuca | 5 | 3 | 2 |
| Long-billed Curlew Numenius americanus | Far Eastern Curlew Numenius madagascariensis | 5 | 1 | 4 |
| Yellow-throated Warbler Setophaga dominica | Grace's Warbler Setophaga graciae | 5 | 0 | 5 |
| Gila Woodpecker Melanerpes uropygialis | Golden-fronted Woodpecker Melanerpes aurifrons | 5 | 2 | 3 |
| Purple Sandpiper Calidris maritima | Rock Sandpiper Calidris ptilocnemis | 5 | 2 | 3 |
| Grey-crowned Rosy-Finch Leucosticte tephrocotis | Black Rosy-Finch Leucosticte atrata | 5 | 1 | 4 |
| Brown Thrasher Toxostoma rufum | Long-billed Thrasher Toxostoma longirostre | 5 | 3 | 2 |
| Tree Swallow Tachycineta bicolor | Violet-green Swallow Tachycineta thalassina | 5 | 2 | 3 |
| Carolina Chickadee Poecile carolinensis | Black-capped Chickadee Poecile atricapillus | 5 | 4 | 1 |
| Chihuahuan Raven Corvus cryptoleucus | Common Raven Corvus corax | 5 | 4 | 1 |
| Dusky Warbler Phylloscopus fuscatus | Arctic Warbler Phylloscopus borealis | 5 | 3 | 2 |
| American Crow Corvus brachyrhynchos | Common Raven Corvus corax | 5 | 3 | 2 |
| Yellow-bellied Sapsucker Sphyrapicus varius | Red-naped Sapsucker Sphyrapicus nuchalis | 5 | 4 | 1 |
| Couch's Kingbird Tyrannus couchii | Western Kingbird Tyrannus verticalis | 5 | 4 | 1 |
| Lesser Nighthawk Chordeiles acutipennis | Common Nighthawk Chordeiles minor | 5 | 2 | 3 |
| Snowy Egret Egretta thula | Little Egret Egretta garzetta | 5 | 0 | 5 |
| MacGillivray's Warbler Geothlypis tolmiei | Mourning Warbler Geothlypis philadelphia | 5 | 3 | 2 |
| Red-bellied Woodpecker Melanerpes carolinus | Downy Woodpecker Dryobates pubescens | 5 | 5 | 0 |
| Pacific Diver Gavia pacifica | Great Northern Diver Gavia immer | 5 | 2 | 3 |
| Rufous Hummingbird Selasphorus rufus | Allen's Hummingbird Selasphorus sasin | 5 | 3 | 2 |
| Grey-crowned Rosy-Finch Leucosticte tephrocotis | Brown-capped Rosy-Finch Leucosticte australis | 5 | 3 | 2 |
| Mottled Owl Strix virgata | Stygian Owl Asio stygius | 5 | 0 | 5 |
| Eastern Meadowlark Sturnella magna | Chihuahuan Meadowlark Sturnella lilianae | 5 | 2 | 3 |
| Florida Scrub-Jay Aphelocoma coerulescens | California Scrub-Jay Aphelocoma californica | 5 | 4 | 1 |
| Philadelphia Vireo Vireo philadelphicus | Warbling Vireo Vireo gilvus | 5 | 4 | 1 |
| Short-billed Dowitcher Limnodromus griseus | Long-billed Dowitcher Limnodromus scolopaceus | 5 | 3 | 2 |
| Oak Titmouse Baeolophus inornatus | Juniper Titmouse Baeolophus ridgwayi | 5 | 2 | 3 |
| Greater Prairie-Chicken Tympanuchus cupido | Lesser Prairie-Chicken Tympanuchus pallidicinctus | 5 | 2 | 3 |
| Townsend's Storm-Petrel Hydrobates socorroensis | Wedge-rumped Storm-Petrel Hydrobates tethys | 5 | 2 | 3 |
| Eastern Bluebird Sialia sialis | Western Bluebird Sialia mexicana | 5 | 4 | 1 |
| Trumpeter Swan Cygnus buccinator | Bewick's Swan Cygnus columbianus | 4 | 4 | 0 |
| Black-throated Diver Gavia arctica | Pacific Diver Gavia pacifica | 4 | 3 | 1 |
| Hammond's Flycatcher Empidonax hammondii | Dusky Flycatcher Empidonax oberholseri | 4 | 2 | 2 |
| Aleutian Tern Onychoprion aleuticus | Bridled Tern Onychoprion anaethetus | 4 | 3 | 1 |
| Bridled Tern Onychoprion anaethetus | Grey-backed Tern Onychoprion lunatus | 4 | 0 | 4 |
| Flesh-footed Shearwater Ardenna carneipes | Sooty Shearwater Ardenna grisea | 4 | 4 | 0 |
| Lucy's Warbler Leiothlypis luciae | Virginia's Warbler Leiothlypis virginiae | 4 | 2 | 2 |
| Tennessee Warbler Leiothlypis peregrina | Orange-crowned Warbler Leiothlypis celata | 4 | 1 | 3 |
| Cliff Swallow Petrochelidon pyrrhonota | Cave Swallow Petrochelidon fulva | 4 | 2 | 2 |
| California Scrub-Jay Aphelocoma californica | Woodhouse's Scrub-Jay Aphelocoma woodhouseii | 4 | 1 | 3 |
| Tropical Kingbird Tyrannus melancholicus | Couch's Kingbird Tyrannus couchii | 4 | 1 | 3 |
| Great Cormorant Phalacrocorax carbo | Double-crested Cormorant Nannopterum auritum | 4 | 4 | 0 |
| Northern Flicker Colaptes auratus | Gilded Flicker Colaptes chrysoides | 4 | 2 | 2 |
| Gyr Falcon Falco rusticolus | Prairie Falcon Falco mexicanus | 4 | 1 | 3 |
| Bronzed Cowbird Molothrus aeneus | Brown-headed Cowbird Molothrus ater | 4 | 2 | 2 |
| Red-winged Blackbird Agelaius phoeniceus | Tricoloured Blackbird Agelaius tricolor | 4 | 1 | 3 |
| Indigo Bunting Passerina cyanea | Varied Bunting Passerina versicolor | 4 | 0 | 4 |
| Common Poorwill Phalaenoptilus nuttallii | Eastern Whip-poor-will Antrostomus vociferus | 4 | 4 | 0 |
| Common Sandpiper Actitis hypoleucos | Spotted Sandpiper Actitis macularius | 4 | 3 | 1 |
| White-tailed Ptarmigan Lagopus leucura | Rock Ptarmigan Lagopus muta | 4 | 3 | 1 |
| Cassin's Kingbird Tyrannus vociferans | Western Kingbird Tyrannus verticalis | 4 | 2 | 2 |
| Lapland Bunting Calcarius lapponicus | Yellow-rumped Warbler Setophaga coronata | 4 | 2 | 2 |
| Sagebrush Sparrow Artemisiospiza nevadensis | Bell's Sparrow Artemisiospiza belli | 4 | 4 | 0 |
| Short-tailed Hawk Buteo brachyurus | Red-tailed Hawk Buteo jamaicensis | 4 | 2 | 2 |
| Hooded Merganser Lophodytes cucullatus | Goosander Mergus merganser | 4 | 1 | 3 |
| Common Kestrel Falco tinnunculus | American Kestrel Falco sparverius | 4 | 1 | 3 |
| Akikiki Oreomystis bairdi | Maui Alauahio Paroreomyza montana | 4 | 2 | 2 |
| Red-eyed Vireo Vireo olivaceus | Yucatan Vireo Vireo magister | 4 | 2 | 2 |
| Wilson's Storm-Petrel Oceanites oceanicus | European Storm-Petrel Hydrobates pelagicus | 4 | 3 | 1 |
| Cassin's Auklet Ptychoramphus aleuticus | Least Auklet Aethia pusilla | 4 | 2 | 2 |
| Whiskered Auklet Aethia pygmaea | Crested Auklet Aethia cristatella | 4 | 2 | 2 |
| White-tailed Ptarmigan Lagopus leucura | Willow Ptarmigan Lagopus lagopus | 4 | 2 | 2 |
| European Storm-Petrel Hydrobates pelagicus | Band-rumped Storm-Petrel Hydrobates castro | 4 | 4 | 0 |
| Slavonian Grebe Podiceps auritus | Black-necked Grebe Podiceps nigricollis | 3 | 2 | 1 |
| Hawaiian Duck Anas wyvilliana | Mallard Anas platyrhynchos | 3 | 3 | 0 |
| Greater Scaup Aythya marila | Lesser Scaup Aythya affinis | 3 | 2 | 1 |
| Buff-breasted Sandpiper Calidris subruficollis | Sanderling Calidris alba | 3 | 2 | 1 |
| Southern Lapwing Vanellus chilensis | Siberian Sand Plover Anarhynchus mongolus | 3 | 2 | 1 |
| Berylline Hummingbird Saucerottia beryllina | Buff-bellied Hummingbird Amazilia yucatanensis | 3 | 1 | 2 |
| Least Flycatcher Empidonax minimus | Hammond's Flycatcher Empidonax hammondii | 3 | 3 | 0 |
| Tricoloured Heron Egretta tricolor | Reddish Egret Egretta rufescens | 3 | 2 | 1 |
| Grey-cheeked Thrush Catharus minimus | Swainson's Thrush Catharus ustulatus | 3 | 1 | 2 |
| Dunlin Calidris alpina | Baird's Sandpiper Calidris bairdii | 3 | 3 | 0 |
| Bicknell's Thrush Catharus bicknelli | Hermit Thrush Catharus guttatus | 3 | 1 | 2 |
| Green Heron Butorides virescens | Chinese Pond Heron Ardeola bacchus | 3 | 1 | 2 |
| Grey Heron Ardea cinerea | Great Blue Heron Ardea herodias | 3 | 2 | 1 |
| Baird's Sandpiper Calidris bairdii | White-rumped Sandpiper Calidris fuscicollis | 3 | 1 | 2 |
| Stejneger's Scoter Melanitta stejnegeri | Black Scoter Melanitta americana | 3 | 2 | 1 |
| Dusky-capped Flycatcher Myiarchus tuberculifer | Nutting's Flycatcher Myiarchus nuttingi | 3 | 1 | 2 |
| Arctic Tern Sterna paradisaea | Common Tern Sterna hirundo | 3 | 2 | 1 |
| Nutting's Flycatcher Myiarchus nuttingi | Great Crested Flycatcher Myiarchus crinitus | 3 | 3 | 0 |
| Whimbrel Numenius phaeopus | Long-billed Curlew Numenius americanus | 3 | 2 | 1 |
| Swallow-tailed Kite Elanoides forficatus | Snail Kite Rostrhamus sociabilis | 3 | 0 | 3 |
| Elegant Tern Thalasseus elegans | Great Crested Tern Thalasseus bergii | 3 | 0 | 3 |
| Couch's Kingbird Tyrannus couchii | Cassin's Kingbird Tyrannus vociferans | 3 | 3 | 0 |
| Grey Silky-flycatcher Ptiliogonys cinereus | Phainopepla Phainopepla nitens | 3 | 3 | 0 |
| Chuck-will's-widow Antrostomus carolinensis | Eastern Whip-poor-will Antrostomus vociferus | 3 | 2 | 1 |
| Western Kingbird Tyrannus verticalis | Eastern Kingbird Tyrannus tyrannus | 3 | 1 | 2 |
| Dusky Grouse Dendragapus obscurus | Sooty Grouse Dendragapus fuliginosus | 3 | 1 | 2 |
| Northern Bobwhite Colinus virginianus | California Quail Callipepla californica | 3 | 0 | 3 |
| Buff-collared Nightjar Antrostomus ridgwayi | Mexican Whip-poor-will Antrostomus arizonae | 3 | 1 | 2 |
| Northern Shoveler Spatula clypeata | Gadwall Mareca strepera | 3 | 3 | 0 |
| Laysan Finch Telespiza cantans | Nihoa Finch Telespiza ultima | 3 | 2 | 1 |
| Laysan Albatross Phoebastria immutabilis | Black-browed Albatross Thalassarche melanophris | 3 | 1 | 2 |
| Ou Psittirostra psittacea | Kauai Nukupuu Hemignathus hanapepe | 3 | 2 | 1 |
| Wilson's Storm-Petrel Oceanites oceanicus | White-faced Storm-Petrel Pelagodroma marina | 3 | 0 | 3 |
| Hawaii Elepaio Chasiempis sandwichensis | Kauai Elepaio Chasiempis sclateri | 3 | 2 | 1 |
| Common Crossbill Loxia curvirostra | Cassia Crossbill Loxia sinesciuris | 3 | 3 | 0 |
| Pine Siskin Spinus pinus | Lesser Goldfinch Spinus psaltria | 3 | 1 | 2 |
| Lesser Goldfinch Spinus psaltria | American Goldfinch Spinus tristis | 3 | 0 | 3 |
| Lapland Bunting Calcarius lapponicus | Smith's Longspur Calcarius pictus | 3 | 0 | 3 |
| Lapland Bunting Calcarius lapponicus | Red-winged Blackbird Agelaius phoeniceus | 3 | 0 | 3 |
| Lapland Bunting Calcarius lapponicus | Brown-headed Cowbird Molothrus ater | 3 | 0 | 3 |
| Band-rumped Storm-Petrel Hydrobates castro | Wedge-rumped Storm-Petrel Hydrobates tethys | 3 | 1 | 2 |
| Brünnich's Guillemot Uria lomvia | Common Guillemot Uria aalge | 3 | 3 | 0 |
| Island Scrub-Jay Aphelocoma insularis | California Scrub-Jay Aphelocoma californica | 3 | 3 | 0 |
| California Scrub-Jay Aphelocoma californica | Mexican Jay Aphelocoma wollweberi | 3 | 0 | 3 |
| Broad-winged Hawk Buteo platypterus | Short-tailed Hawk Buteo brachyurus | 3 | 1 | 2 |
| Hawaiian Hawk Buteo solitarius | Short-tailed Hawk Buteo brachyurus | 3 | 1 | 2 |
| Hawaiian Hawk Buteo solitarius | Swainson's Hawk Buteo swainsoni | 3 | 1 | 2 |
| Wilson's Phalarope Phalaropus tricolor | Red-necked Phalarope Phalaropus lobatus | 3 | 2 | 1 |
| Cassin's Sparrow Peucaea cassinii | Grasshopper Sparrow Ammodramus savannarum | 3 | 0 | 3 |
| Chipping Sparrow Spizella passerina | Clay-coloured Sparrow Spizella pallida | 3 | 0 | 3 |
| Swainson's Hawk Buteo swainsoni | Red-tailed Hawk Buteo jamaicensis | 3 | 0 | 3 |
| Fish Crow Corvus ossifragus | Chihuahuan Raven Corvus cryptoleucus | 3 | 2 | 1 |
| Hawaiian Crow Corvus hawaiiensis | Chihuahuan Raven Corvus cryptoleucus | 3 | 1 | 2 |
| Rough-legged Buzzard Buteo lagopus | Ferruginous Hawk Buteo regalis | 3 | 2 | 1 |
| Common Raven Corvus corax | Purple Martin Progne subis | 3 | 1 | 2 |
| Dark-eyed Junco Junco hyemalis | Brown-headed Cowbird Molothrus ater | 3 | 2 | 1 |
| White-crowned Sparrow Zonotrichia leucophrys | Brown-headed Cowbird Molothrus ater | 3 | 0 | 3 |
| White-crowned Sparrow Zonotrichia leucophrys | Yellow-rumped Warbler Setophaga coronata | 3 | 2 | 1 |
| Golden-crowned Sparrow Zonotrichia atricapilla | White-throated Sparrow Zonotrichia albicollis | 3 | 0 | 3 |
| Oriental Scops Owl Otus sunia | Western Screech-Owl Megascops kennicottii | 3 | 3 | 0 |
| Grey Phalarope Phalaropus fulicarius | Red-necked Phalarope Phalaropus lobatus | 3 | 3 | 0 |
| King Eider Somateria spectabilis | Harlequin Duck Histrionicus histrionicus | 3 | 3 | 0 |
| Vesper Sparrow Pooecetes gramineus | LeConte's Sparrow Ammospiza leconteii | 3 | 2 | 1 |
| LeConte's Sparrow Ammospiza leconteii | Nelson's Sparrow Ammospiza nelsoni | 3 | 2 | 1 |
| Black-capped Chickadee Poecile atricapillus | Chestnut-backed Chickadee Poecile rufescens | 3 | 2 | 1 |
| Trindade Petrel Pterodroma arminjoniana | Hawaiian Petrel Pterodroma sandwichensis | 3 | 3 | 0 |
| Abert's Towhee Melozone aberti | California Towhee Melozone crissalis | 3 | 3 | 0 |
| Northern Bobwhite Colinus virginianus | Lapland Bunting Calcarius lapponicus | 3 | 3 | 0 |
| Garganey Spatula querquedula | Cinnamon Teal Spatula cyanoptera | 3 | 2 | 1 |
| Black-capped Petrel Pterodroma hasitata | Hawaiian Petrel Pterodroma sandwichensis | 3 | 2 | 1 |
| Bullock's Oriole Icterus bullockii | Scott's Oriole Icterus parisorum | 3 | 1 | 2 |
| Black-backed Oriole Icterus abeillei | Scott's Oriole Icterus parisorum | 3 | 0 | 3 |
| Black-capped Petrel Pterodroma hasitata | Bonin Petrel Pterodroma hypoleuca | 3 | 0 | 3 |
| Shore Lark Eremophila alpestris | Western Meadowlark Sturnella neglecta | 3 | 2 | 1 |
| Hawaiian Petrel Pterodroma sandwichensis | Bonin Petrel Pterodroma hypoleuca | 3 | 2 | 1 |
| Sandhill Crane Antigone canadensis | White Ibis Eudocimus albus | 3 | 1 | 2 |
| Yellow-bellied Sapsucker Sphyrapicus varius | Red-breasted Sapsucker Sphyrapicus ruber | 3 | 0 | 3 |
| Boat-tailed Grackle Quiscalus major | Great-tailed Grackle Quiscalus mexicanus | 3 | 3 | 0 |
| Yellow-billed Cuckoo Coccyzus americanus | Black-billed Cuckoo Coccyzus erythropthalmus | 3 | 0 | 3 |
| Bahama Swallow Tachycineta cyaneoviridis | Cuban Martin Progne cryptoleuca | 3 | 0 | 3 |
| Orange-crowned Warbler Leiothlypis celata | Lucy's Warbler Leiothlypis luciae | 3 | 1 | 2 |
| Colima Warbler Leiothlypis crissalis | Lucy's Warbler Leiothlypis luciae | 3 | 3 | 0 |
| Common Gull Larus canus | Short-billed Gull Larus brachyrhynchus | 3 | 3 | 0 |
| Barn Swallow Hirundo rustica | Cliff Swallow Petrochelidon pyrrhonota | 3 | 1 | 2 |
| Ring-necked Duck Aythya collaris | Lesser Scaup Aythya affinis | 3 | 2 | 1 |
| Kirtland's Warbler Setophaga kirtlandii | Cape May Warbler Setophaga tigrina | 3 | 1 | 2 |
| Cliff Swallow Petrochelidon pyrrhonota | Brown-headed Cowbird Molothrus ater | 3 | 1 | 2 |
| Sooty Shearwater Ardenna grisea | Short-tailed Shearwater Ardenna tenuirostris | 3 | 2 | 1 |
| Bay-breasted Warbler Setophaga castanea | Chestnut-sided Warbler Setophaga pensylvanica | 3 | 3 | 0 |
| Western Gull Larus occidentalis | Great Black-backed Gull Larus marinus | 3 | 3 | 0 |
| Manx Shearwater Puffinus puffinus | Newell's Shearwater Puffinus newelli | 3 | 0 | 3 |
| European Golden Plover Pluvialis apricaria | American Golden Plover Pluvialis dominica | 3 | 2 | 1 |
| Great Black-backed Gull Larus marinus | Lesser Black-backed Gull Larus fuscus | 3 | 1 | 2 |
| Black-tailed Gnatcatcher Polioptila melanura | Black-capped Gnatcatcher Polioptila nigriceps | 3 | 0 | 3 |
| Lesser Nighthawk Chordeiles acutipennis | Antillean Nighthawk Chordeiles gundlachii | 3 | 2 | 1 |
| Great Frigatebird Fregata minor | Red-footed Booby Sula sula | 3 | 1 | 2 |
| Allen's Hummingbird Selasphorus sasin | Broad-tailed Hummingbird Selasphorus platycercus | 3 | 0 | 3 |
| Eastern Spot-billed Duck Anas zonorhyncha | Mexican Duck Anas diazi | 2 | 2 | 0 |
| Lapland Bunting Calcarius lapponicus | White-crowned Sparrow Zonotrichia leucophrys | 2 | 1 | 1 |
| Lazuli Bunting Passerina amoena | Painted Bunting Passerina ciris | 2 | 2 | 0 |
| Black-throated Blue Warbler Setophaga caerulescens | Palm Warbler Setophaga palmarum | 2 | 1 | 1 |
| Canada Jay Perisoreus canadensis | Pinyon Jay Gymnorhinus cyanocephalus | 2 | 1 | 1 |
| Snail Kite Rostrhamus sociabilis | Northern Harrier Circus hudsonius | 2 | 2 | 0 |
| Razorbill Alca torda | Brünnich's Guillemot Uria lomvia | 2 | 2 | 0 |
| Green Jay Cyanocorax yncas | Pinyon Jay Gymnorhinus cyanocephalus | 2 | 2 | 0 |
| Wilson's Snipe Gallinago delicata | Wilson's Phalarope Phalaropus tricolor | 2 | 1 | 1 |
| Smith's Longspur Calcarius pictus | Thick-billed Longspur Rhynchophanes mccownii | 2 | 0 | 2 |
| Harris's Hawk Parabuteo unicinctus | Grey Hawk Buteo plagiatus | 2 | 0 | 2 |
| Pinyon Jay Gymnorhinus cyanocephalus | Blue Jay Cyanocitta cristata | 2 | 2 | 0 |
| Palm Warbler Setophaga palmarum | Pine Warbler Setophaga pinus | 2 | 2 | 0 |
| Little Auk Alle alle | Ancient Murrelet Synthliboramphus antiquus | 2 | 2 | 0 |
| Wedge-rumped Storm-Petrel Hydrobates tethys | Black Storm-Petrel Hydrobates melania | 2 | 1 | 1 |
| Hawaiian Coot Fulica alai | American Coot Fulica americana | 2 | 2 | 0 |
| White-throated Needletail Hirundapus caudacutus | White-throated Swift Aeronautes saxatalis | 2 | 2 | 0 |
| Sage Thrasher Oreoscoptes montanus | Northern Mockingbird Mimus polyglottos | 2 | 2 | 0 |
| Bohemian Waxwing Bombycilla garrulus | Cedar Waxwing Bombycilla cedrorum | 2 | 1 | 1 |
| Snail Kite Rostrhamus sociabilis | Mississippi Kite Ictinia mississippiensis | 2 | 1 | 1 |
| Florida Scrub-Jay Aphelocoma coerulescens | Woodhouse's Scrub-Jay Aphelocoma woodhouseii | 2 | 1 | 1 |
| Buff-breasted Sandpiper Calidris subruficollis | Purple Sandpiper Calidris maritima | 2 | 2 | 0 |
| Long-billed Curlew Numenius americanus | Eurasian Curlew Numenius arquata | 2 | 1 | 1 |
| LeConte's Thrasher Toxostoma lecontei | Crissal Thrasher Toxostoma crissale | 2 | 2 | 0 |
| Swallow-tailed Kite Elanoides forficatus | Mississippi Kite Ictinia mississippiensis | 2 | 2 | 0 |
| Woodhouse's Scrub-Jay Aphelocoma woodhouseii | Black-billed Magpie Pica hudsonia | 2 | 1 | 1 |
| Yellow-bellied Flycatcher Empidonax flaviventris | Alder Flycatcher Empidonax alnorum | 2 | 1 | 1 |
| Costa's Hummingbird Calypte costae | Calliope Hummingbird Selasphorus calliope | 2 | 1 | 1 |
| Ruddy Turnstone Arenaria interpres | Black Turnstone Arenaria melanocephala | 2 | 0 | 2 |
| Common Poorwill Phalaenoptilus nuttallii | Chuck-will's-widow Antrostomus carolinensis | 2 | 2 | 0 |
| Yellow-bellied Flycatcher Empidonax flaviventris | Acadian Flycatcher Empidonax virescens | 2 | 1 | 1 |
| Goosander Mergus merganser | Red-breasted Merganser Mergus serrator | 2 | 1 | 1 |
| Western Sandpiper Calidris mauri | Semipalmated Sandpiper Calidris pusilla | 2 | 0 | 2 |
| Grasshopper Sparrow Ammodramus savannarum | Chipping Sparrow Spizella passerina | 2 | 1 | 1 |
| Common Tern Sterna hirundo | Roseate Tern Sterna dougallii | 2 | 0 | 2 |
| Siberian Blue Robin Larvivora cyane | Red-flanked Bluetail Tarsiger cyanurus | 2 | 1 | 1 |
| Olive Sparrow Arremonops rufivirgatus | Chipping Sparrow Spizella passerina | 2 | 0 | 2 |
| Short-tailed Hawk Buteo brachyurus | Rough-legged Buzzard Buteo lagopus | 2 | 2 | 0 |
| Prairie Warbler Setophaga discolor | Townsend's Warbler Setophaga townsendi | 2 | 2 | 0 |
| Chipping Sparrow Spizella passerina | Black-chinned Sparrow Spizella atrogularis | 2 | 2 | 0 |
| Manx Shearwater Puffinus puffinus | Black-vented Shearwater Puffinus opisthomelas | 2 | 1 | 1 |
| Swainson's Hawk Buteo swainsoni | Rough-legged Buzzard Buteo lagopus | 2 | 1 | 1 |
| Clay-coloured Sparrow Spizella pallida | Field Sparrow Spizella pusilla | 2 | 0 | 2 |
| Clay-coloured Sparrow Spizella pallida | Brewer's Sparrow Spizella breweri | 2 | 2 | 0 |
| Swainson's Hawk Buteo swainsoni | Ferruginous Hawk Buteo regalis | 2 | 1 | 1 |
| Common Guillemot Uria aalge | Ancient Murrelet Synthliboramphus antiquus | 2 | 0 | 2 |
| Red-tailed Hawk Buteo jamaicensis | Rough-legged Buzzard Buteo lagopus | 2 | 1 | 1 |
| Black-bellied Whistling-Duck Dendrocygna autumnalis | Fulvous Whistling-Duck Dendrocygna bicolor | 2 | 0 | 2 |
| Black-throated Grey Warbler Setophaga nigrescens | Townsend's Warbler Setophaga townsendi | 2 | 1 | 1 |
| Siberian Blue Robin Larvivora cyane | Siberian Rubythroat Calliope calliope | 2 | 0 | 2 |
| Common Ringed Plover Charadrius hiaticula | Semipalmated Plover Charadrius semipalmatus | 2 | 2 | 0 |
| Great Kiskadee Pitangus sulphuratus | Social Flycatcher Myiozetetes similis | 2 | 0 | 2 |
| Red-footed Falcon Falco vespertinus | Eurasian Hobby Falco subbuteo | 2 | 1 | 1 |
| Lark Bunting Calamospiza melanocorys | American Tree Sparrow Spizelloides arborea | 2 | 2 | 0 |
| Smooth-billed Ani Crotophaga ani | Groove-billed Ani Crotophaga sulcirostris | 2 | 0 | 2 |
| American Barn Owl Tyto furcata | Flammulated Owl Psiloscops flammeolus | 2 | 0 | 2 |
| Common Raven Corvus corax | Common Grackle Quiscalus quiscula | 2 | 0 | 2 |
| Townsend's Warbler Setophaga townsendi | Black-throated Green Warbler Setophaga virens | 2 | 2 | 0 |
| Dark-eyed Junco Junco hyemalis | Yellow-rumped Warbler Setophaga coronata | 2 | 0 | 2 |
| Brown-crested Flycatcher Myiarchus tyrannulus | Prairie Warbler Setophaga discolor | 2 | 2 | 0 |
| White-crowned Sparrow Zonotrichia leucophrys | Golden-crowned Sparrow Zonotrichia atricapilla | 2 | 2 | 0 |
| Ancient Murrelet Synthliboramphus antiquus | Guadalupe Murrelet Synthliboramphus hypoleucus | 2 | 1 | 1 |
| European Golden Plover Pluvialis apricaria | Pacific Golden Plover Pluvialis fulva | 2 | 2 | 0 |
| Hermit Warbler Setophaga occidentalis | Black-throated Green Warbler Setophaga virens | 2 | 1 | 1 |
| Black Turnstone Arenaria melanocephala | Great Knot Calidris tenuirostris | 2 | 2 | 0 |
| Sargasso Shearwater Puffinus lherminieri | Magnificent Frigatebird Fregata magnificens | 2 | 2 | 0 |
| White-breasted Nuthatch Sitta carolinensis | Brown-headed Nuthatch Sitta pusilla | 2 | 0 | 2 |
| Double-crested Cormorant Nannopterum auritum | Neotropic Cormorant Nannopterum brasilianum | 2 | 0 | 2 |
| Willow Ptarmigan Lagopus lagopus | Sandhill Crane Antigone canadensis | 2 | 2 | 0 |
| Bristle-thighed Curlew Numenius tahitiensis | Whimbrel Numenius phaeopus | 2 | 1 | 1 |
| Groove-billed Ani Crotophaga sulcirostris | Yellow-billed Cuckoo Coccyzus americanus | 2 | 1 | 1 |
| Trindade Petrel Pterodroma arminjoniana | Herald Petrel Pterodroma heraldica | 2 | 1 | 1 |
| White-tailed Kite Elanus leucurus | Mississippi Kite Ictinia mississippiensis | 2 | 2 | 0 |
| Aplomado Falcon Falco femoralis | Bat Falcon Falco rufigularis | 2 | 0 | 2 |
| Mexican Fan-tailed Warbler Euthlypis lachrymosa | Golden-crowned Warbler Basileuterus culicivorus | 2 | 1 | 1 |
| Seaside Sparrow Ammospiza maritima | Nelson's Sparrow Ammospiza nelsoni | 2 | 1 | 1 |
| Seaside Sparrow Ammospiza maritima | Saltmarsh Sparrow Ammospiza caudacuta | 2 | 0 | 2 |
| Seaside Sparrow Ammospiza maritima | Savannah Sparrow Passerculus sandwichensis | 2 | 2 | 0 |
| Nelson's Sparrow Ammospiza nelsoni | Saltmarsh Sparrow Ammospiza caudacuta | 2 | 2 | 0 |
| Calliope Hummingbird Selasphorus calliope | Rufous Hummingbird Selasphorus rufus | 2 | 0 | 2 |
| Trindade Petrel Pterodroma arminjoniana | Fea's Petrel Pterodroma feae | 2 | 1 | 1 |
| Yellow Rail Coturnicops noveboracensis | Black Rail Laterallus jamaicensis | 2 | 2 | 0 |
| Snow Goose Anser caerulescens | Willow Ptarmigan Lagopus lagopus | 2 | 1 | 1 |
| Baird's Sparrow Centronyx bairdii | Song Sparrow Melospiza melodia | 2 | 1 | 1 |
| Chestnut-backed Chickadee Poecile rufescens | Boreal Chickadee Poecile hudsonicus | 2 | 0 | 2 |
| Nutting's Flycatcher Myiarchus nuttingi | Brown-crested Flycatcher Myiarchus tyrannulus | 2 | 2 | 0 |
| Song Sparrow Melospiza melodia | Swamp Sparrow Melospiza georgiana | 2 | 2 | 0 |
| Lincoln's Sparrow Melospiza lincolnii | Swamp Sparrow Melospiza georgiana | 2 | 1 | 1 |
| Ash-throated Flycatcher Myiarchus cinerascens | Brown-crested Flycatcher Myiarchus tyrannulus | 2 | 2 | 0 |
| Least Sandpiper Calidris minutilla | Pectoral Sandpiper Calidris melanotos | 2 | 1 | 1 |
| Red-necked Stint Calidris ruficollis | Sanderling Calidris alba | 2 | 2 | 0 |
| Northern Pygmy-Owl Glaucidium gnoma | Burrowing Owl Athene cunicularia | 2 | 2 | 0 |
| Groove-billed Ani Crotophaga sulcirostris | Black-billed Cuckoo Coccyzus erythropthalmus | 2 | 1 | 1 |
| Band-tailed Pigeon Patagioenas fasciata | Rufous Turtle Dove Streptopelia orientalis | 2 | 1 | 1 |
| Oak Titmouse Baeolophus inornatus | Tufted Titmouse Baeolophus bicolor | 2 | 2 | 0 |
| Ross's Gull Rhodostethia rosea | Red-legged Kittiwake Rissa brevirostris | 2 | 2 | 0 |
| Black Rail Laterallus jamaicensis | Sungrebe Heliornis fulica | 2 | 0 | 2 |
| Great Knot Calidris tenuirostris | Red Knot Calidris canutus | 2 | 2 | 0 |
| Tufted Titmouse Baeolophus bicolor | Verdin Auriparus flaviceps | 2 | 0 | 2 |
| Black-legged Kittiwake Rissa tridactyla | Glaucous-winged Gull Larus glaucescens | 2 | 2 | 0 |
| White-rumped Sandpiper Calidris fuscicollis | Least Sandpiper Calidris minutilla | 2 | 0 | 2 |
| Western Meadowlark Sturnella neglecta | Red-winged Blackbird Agelaius phoeniceus | 2 | 0 | 2 |
| Mottled Owl Strix virgata | Barred Owl Strix varia | 2 | 2 | 0 |
| White-crowned Pigeon Patagioenas leucocephala | Band-tailed Pigeon Patagioenas fasciata | 2 | 0 | 2 |
| Common Pauraque Nyctidromus albicollis | Eastern Whip-poor-will Antrostomus vociferus | 2 | 0 | 2 |
| Northern Bobwhite Colinus virginianus | Dark-eyed Junco Junco hyemalis | 2 | 1 | 1 |
| Mottled Owl Strix virgata | Northern Saw-whet Owl Aegolius acadicus | 2 | 0 | 2 |
| Red-faced Warbler Cardellina rubrifrons | Painted Redstart Myioborus pictus | 2 | 2 | 0 |
| Verdin Auriparus flaviceps | Millerbird Acrocephalus familiaris | 2 | 2 | 0 |
| Grey-tailed Tattler Tringa brevipes | Wandering Tattler Tringa incana | 2 | 1 | 1 |
| Red-faced Warbler Cardellina rubrifrons | Slate-throated Redstart Myioborus miniatus | 2 | 1 | 1 |
| Bullock's Oriole Icterus bullockii | Altamira Oriole Icterus gularis | 2 | 0 | 2 |
| Black-capped Petrel Pterodroma hasitata | White-necked Petrel Pterodroma cervicalis | 2 | 1 | 1 |
| Pelagic Cormorant Urile pelagicus | Double-crested Cormorant Nannopterum auritum | 2 | 0 | 2 |
| Baltimore Oriole Icterus galbula | Scott's Oriole Icterus parisorum | 2 | 1 | 1 |
| Hepatic Tanager Piranga flava | Scarlet Tanager Piranga olivacea | 2 | 1 | 1 |
| Hepatic Tanager Piranga flava | Western Tanager Piranga ludoviciana | 2 | 2 | 0 |
| Redwing Turdus iliacus | Clay-coloured Thrush Turdus grayi | 2 | 2 | 0 |
| Summer Tanager Piranga rubra | Scarlet Tanager Piranga olivacea | 2 | 1 | 1 |
| California Quail Callipepla californica | Montezuma Quail Cyrtonyx montezumae | 2 | 1 | 1 |
| Hooded Merganser Lophodytes cucullatus | Red-breasted Merganser Mergus serrator | 2 | 1 | 1 |
| Laysan Duck Anas laysanensis | Mexican Duck Anas diazi | 2 | 2 | 0 |
| Ruby-throated Hummingbird Archilochus colubris | Black-chinned Hummingbird Archilochus alexandri | 2 | 1 | 1 |
| Bonin Petrel Pterodroma hypoleuca | Cook's Petrel Pterodroma cookii | 2 | 2 | 0 |
| Millerbird Acrocephalus familiaris | Lanceolated Warbler Locustella lanceolata | 2 | 0 | 2 |
| Red-legged Kittiwake Rissa brevirostris | Sabine's Gull Xema sabini | 2 | 1 | 1 |
| Black Tern Chlidonias niger | White-winged Black Tern Chlidonias leucopterus | 2 | 0 | 2 |
| Black-winged Petrel Pterodroma nigripennis | Cook's Petrel Pterodroma cookii | 2 | 1 | 1 |
| Brown-headed Cowbird Molothrus ater | Brewer's Blackbird Euphagus cyanocephalus | 2 | 1 | 1 |
| Brown-headed Cowbird Molothrus ater | Yellow-rumped Warbler Setophaga coronata | 2 | 2 | 0 |
| Rusty Blackbird Euphagus carolinus | Brewer's Blackbird Euphagus cyanocephalus | 2 | 0 | 2 |
| Black-winged Stilt Himantopus himantopus | Black-necked Stilt Himantopus mexicanus | 2 | 2 | 0 |
| Rusty Blackbird Euphagus carolinus | Black-headed Grosbeak Pheucticus melanocephalus | 2 | 2 | 0 |
| Brewer's Blackbird Euphagus cyanocephalus | Common Grackle Quiscalus quiscula | 2 | 1 | 1 |
| Snowy Plover Anarhynchus nivosus | Kentish Plover Anarhynchus alexandrinus | 2 | 0 | 2 |
| Pacific Golden Plover Pluvialis fulva | Killdeer Charadrius vociferus | 2 | 1 | 1 |
| Sand Martin Riparia riparia | Tree Swallow Tachycineta bicolor | 2 | 2 | 0 |
| Sabine's Gull Xema sabini | Bonaparte's Gull Chroicocephalus philadelphia | 2 | 0 | 2 |
| Ruby-throated Hummingbird Archilochus colubris | Anna's Hummingbird Calypte anna | 2 | 1 | 1 |
| Marsh Wren Cistothorus palustris | Carolina Wren Thryothorus ludovicianus | 2 | 2 | 0 |
| Tree Swallow Tachycineta bicolor | Mangrove Swallow Tachycineta albilinea | 2 | 0 | 2 |
| Common Pauraque Nyctidromus albicollis | Chuck-will's-widow Antrostomus carolinensis | 2 | 2 | 0 |
| Tree Swallow Tachycineta bicolor | Blue-and-white Swallow Pygochelidon cyanoleuca | 2 | 0 | 2 |
| Surf Scoter Melanitta perspicillata | Black Scoter Melanitta americana | 2 | 2 | 0 |
| Streaked Shearwater Calonectris leucomelas | Cory's Shearwater Calonectris diomedea | 2 | 2 | 0 |
| Northern House Wren Troglodytes aedon | Pacific Wren Troglodytes pacificus | 2 | 1 | 1 |
| Western Flycatcher Empidonax difficilis | Buff-breasted Flycatcher Empidonax fulvifrons | 2 | 2 | 0 |
| Tree Swallow Tachycineta bicolor | White-crowned Sparrow Zonotrichia leucophrys | 2 | 2 | 0 |
| Lesser Yellowlegs Tringa flavipes | Common Greenshank Tringa nebularia | 2 | 0 | 2 |
| Laughing Gull Leucophaeus atricilla | Franklin's Gull Leucophaeus pipixcan | 2 | 1 | 1 |
| Lewis's Woodpecker Melanerpes lewis | Acorn Woodpecker Melanerpes formicivorus | 2 | 1 | 1 |
| Black-chinned Hummingbird Archilochus alexandri | Costa's Hummingbird Calypte costae | 2 | 1 | 1 |
| Red-headed Woodpecker Melanerpes erythrocephalus | Acorn Woodpecker Melanerpes formicivorus | 2 | 1 | 1 |
| Northern House Wren Troglodytes aedon | Winter Wren Troglodytes hiemalis | 2 | 2 | 0 |
| Veery Catharus fuscescens | Bicknell's Thrush Catharus bicknelli | 2 | 0 | 2 |
| Barrow's Goldeneye Bucephala islandica | Hooded Merganser Lophodytes cucullatus | 2 | 0 | 2 |
| Purple Martin Progne subis | Brown-chested Martin Progne tapera | 2 | 2 | 0 |
| Purple Martin Progne subis | Barn Swallow Hirundo rustica | 2 | 1 | 1 |
| Scarlet Tanager Piranga olivacea | Northern Cardinal Cardinalis cardinalis | 2 | 1 | 1 |
| Orange-crowned Warbler Leiothlypis celata | Nashville Warbler Leiothlypis ruficapilla | 2 | 2 | 0 |
| Olive-sided Flycatcher Contopus cooperi | Western Wood-Pewee Contopus sordidulus | 2 | 1 | 1 |
| Purple Martin Progne subis | Cliff Swallow Petrochelidon pyrrhonota | 2 | 1 | 1 |
| Flesh-footed Shearwater Ardenna carneipes | Wedge-tailed Shearwater Ardenna pacifica | 2 | 1 | 1 |
| Gull-billed Tern Gelochelidon nilotica | Whiskered Tern Chlidonias hybrida | 2 | 1 | 1 |
| Dusky Flycatcher Empidonax oberholseri | Eastern Phoebe Sayornis phoebe | 2 | 2 | 0 |
| Chinese Egret Egretta eulophotes | Western Reef-Heron Egretta gularis | 2 | 2 | 0 |
| Purple Martin Progne subis | Brewer's Blackbird Euphagus cyanocephalus | 2 | 1 | 1 |
| Belcher's Gull Larus belcheri | Black-tailed Gull Larus crassirostris | 2 | 2 | 0 |
| Great Shearwater Ardenna gravis | Wedge-tailed Shearwater Ardenna pacifica | 2 | 2 | 0 |
| Golden-fronted Woodpecker Melanerpes aurifrons | Red-bellied Woodpecker Melanerpes carolinus | 2 | 2 | 0 |
| Connecticut Warbler Oporornis agilis | Grey-crowned Yellowthroat Geothlypis poliocephala | 2 | 1 | 1 |
| American Oystercatcher Haematopus palliatus | Black Oystercatcher Haematopus bachmani | 2 | 0 | 2 |
| Snow Goose Anser caerulescens | Ross's Goose Anser rossii | 2 | 1 | 1 |
| Lesser Nighthawk Chordeiles acutipennis | Chuck-will's-widow Antrostomus carolinensis | 2 | 1 | 1 |
| Brown-chested Martin Progne tapera | Northern Rough-winged Swallow Stelgidopteryx serripennis | 2 | 2 | 0 |
| Common Pauraque Nyctidromus albicollis | Common Poorwill Phalaenoptilus nuttallii | 2 | 1 | 1 |
| Common Gull Larus canus | Ring-billed Gull Larus delawarensis | 2 | 1 | 1 |
| Olomao Myadestes lanaiensis | Omao Myadestes obscurus | 2 | 2 | 0 |
| Little Blue Heron Egretta caerulea | Chinese Egret Egretta eulophotes | 2 | 1 | 1 |
| Rock Ptarmigan Lagopus muta | Spruce Grouse Canachites canadensis | 2 | 1 | 1 |
| Long-toed Stint Calidris subminuta | Least Sandpiper Calidris minutilla | 2 | 1 | 1 |
| Least Flycatcher Empidonax minimus | Grey Flycatcher Empidonax wrightii | 2 | 0 | 2 |
| Wedge-tailed Shearwater Ardenna pacifica | Newell's Shearwater Puffinus newelli | 2 | 0 | 2 |
| Northern Gannet Morus bassanus | Masked Booby Sula dactylatra | 2 | 2 | 0 |
| Little Blue Heron Egretta caerulea | Tricoloured Heron Egretta tricolor | 2 | 1 | 1 |
| Nuttall's Woodpecker Dryobates nuttallii | Red-cockaded Woodpecker Leuconotopicus borealis | 2 | 1 | 1 |
| Long-toed Stint Calidris subminuta | Buff-breasted Sandpiper Calidris subruficollis | 2 | 2 | 0 |
| Bahama Mockingbird Mimus gundlachii | Northern Mockingbird Mimus polyglottos | 2 | 1 | 1 |
| Cliff Swallow Petrochelidon pyrrhonota | American Goldfinch Spinus tristis | 2 | 1 | 1 |
| Ladder-backed Woodpecker Dryobates scalaris | Hairy Woodpecker Leuconotopicus villosus | 2 | 1 | 1 |
| Chinese Sparrowhawk Tachyspiza soloensis | Cooper's Hawk Astur cooperii | 2 | 2 | 0 |
| Hudsonian Godwit Limosa haemastica | Short-billed Dowitcher Limnodromus griseus | 2 | 2 | 0 |
| Cassin's Vireo Vireo cassinii | Plumbeous Vireo Vireo plumbeus | 2 | 1 | 1 |
| Blue Grosbeak Passerina caerulea | Indigo Bunting Passerina cyanea | 2 | 1 | 1 |
| Kauai Nukupuu Hemignathus hanapepe | Akiapolaau Hemignathus wilsoni | 2 | 2 | 0 |
| Hudsonian Godwit Limosa haemastica | Long-billed Dowitcher Limnodromus scolopaceus | 2 | 2 | 0 |
| Blue-headed Vireo Vireo solitarius | Plumbeous Vireo Vireo plumbeus | 2 | 0 | 2 |
| Sharp-shinned Hawk Accipiter striatus | Cooper's Hawk Astur cooperii | 2 | 1 | 1 |
| Laysan Albatross Phoebastria immutabilis | Black-footed Albatross Phoebastria nigripes | 2 | 2 | 0 |
| Mexican Duck Anas diazi | American Black Duck Anas rubripes | 2 | 1 | 1 |
| Short-tailed Albatross Phoebastria albatrus | Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos | 2 | 1 | 1 |
| Short-tailed Albatross Phoebastria albatrus | Black-browed Albatross Thalassarche melanophris | 2 | 1 | 1 |
| Sharp-tailed Grouse Tympanuchus phasianellus | Lesser Prairie-Chicken Tympanuchus pallidicinctus | 2 | 1 | 1 |
| Palila Loxioides bailleui | Laysan Finch Telespiza cantans | 2 | 1 | 1 |
| Northern Harrier Circus hudsonius | Cooper's Hawk Astur cooperii | 2 | 1 | 1 |
| Oahu Amakihi Chlorodrepanis flava | Hawaii Creeper Loxops mana | 2 | 1 | 1 |
| Northern Harrier Circus hudsonius | Sharp-shinned Hawk Accipiter striatus | 2 | 1 | 1 |
| Lesser Prairie-Chicken Tympanuchus pallidicinctus | Spruce Grouse Canachites canadensis | 2 | 0 | 2 |
| Crested Auklet Aethia cristatella | Parakeet Auklet Aethia psittacula | 2 | 2 | 0 |
| Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos | Black-browed Albatross Thalassarche melanophris | 2 | 0 | 2 |
| White-capped Albatross Thalassarche cauta | Salvin's Albatross Thalassarche salvini | 2 | 0 | 2 |
| White-tipped Dove Leptotila verreauxi | White-winged Dove Zenaida asiatica | 2 | 0 | 2 |
| Tundra Bean Goose Anser serrirostris | Barnacle Goose Branta leucopsis | 2 | 2 | 0 |
| Rufous Hummingbird Selasphorus rufus | Broad-tailed Hummingbird Selasphorus platycercus | 2 | 0 | 2 |
| Maui Alauahio Paroreomyza montana | Anianiau Magumma parva | 2 | 2 | 0 |
| Warbling Vireo Vireo gilvus | Yucatan Vireo Vireo magister | 2 | 1 | 1 |
| Parakeet Auklet Aethia psittacula | Marbled Murrelet Brachyramphus marmoratus | 2 | 1 | 1 |
| Tufted Puffin Fratercula cirrhata | Horned Puffin Fratercula corniculata | 2 | 0 | 2 |
| Parakeet Auklet Aethia psittacula | Black Guillemot Cepphus grylle | 2 | 2 | 0 |
| Bell's Vireo Vireo bellii | Grey Vireo Vireo vicinior | 2 | 2 | 0 |
| Western Marsh Harrier Circus aeruginosus | Hen Harrier Circus cyaneus | 2 | 1 | 1 |
| Maui Akepa Loxops ochraceus | Eurasian Bullfinch Pyrrhula pyrrhula | 2 | 2 | 0 |
| Common Rosefinch Carpodacus erythrinus | Pallas's Rosefinch Carpodacus roseus | 2 | 0 | 2 |
| Trumpeter Swan Cygnus buccinator | Whooper Swan Cygnus cygnus | 2 | 2 | 0 |
| Black-bellied Storm-Petrel Fregetta tropica | European Storm-Petrel Hydrobates pelagicus | 2 | 1 | 1 |
| Buff-bellied Pipit Anthus rubescens | Sprague's Pipit Anthus spragueii | 2 | 0 | 2 |
| Black-whiskered Vireo Vireo altiloquus | Yucatan Vireo Vireo magister | 2 | 1 | 1 |
| European Storm-Petrel Hydrobates pelagicus | Wedge-rumped Storm-Petrel Hydrobates tethys | 2 | 2 | 0 |
| Eurasian Bullfinch Pyrrhula pyrrhula | Black Rosy-Finch Leucosticte atrata | 2 | 1 | 1 |
| Jack Snipe Lymnocryptes minimus | American Woodcock Scolopax minor | 2 | 2 | 0 |
| Scissor-tailed Flycatcher Tyrannus forficatus | Fork-tailed Flycatcher Tyrannus savana | 2 | 1 | 1 |
| Mississippi Kite Ictinia mississippiensis | Short-tailed Hawk Buteo brachyurus | 2 | 1 | 1 |
| Mountain Quail Oreortyx pictus | California Quail Callipepla californica | 2 | 2 | 0 |
| Bar-tailed Godwit Limosa lapponica | Marbled Godwit Limosa fedoa | 2 | 0 | 2 |
| Purple Finch Haemorhous purpureus | Cassin's Finch Haemorhous cassinii | 2 | 2 | 0 |
| Kauai Elepaio Chasiempis sclateri | Oahu Elepaio Chasiempis ibidis | 2 | 1 | 1 |
| Crane Hawk Geranospiza caerulescens | Harris's Hawk Parabuteo unicinctus | 2 | 2 | 0 |
| Red-billed Tropicbird Phaethon aethereus | Red-tailed Tropicbird Phaethon rubricauda | 2 | 1 | 1 |
| Cackling Goose Branta hutchinsii | Canada Goose Branta canadensis | 2 | 1 | 1 |
| Solitary Snipe Gallinago solitaria | Wilson's Snipe Gallinago delicata | 2 | 2 | 0 |
| Pin-tailed Snipe Gallinago stenura | Wilson's Snipe Gallinago delicata | 2 | 0 | 2 |
| Common Redpoll Acanthis flammea | Arctic Redpoll Acanthis hornemanni | 2 | 1 | 1 |
| Northern Flicker Colaptes auratus | Crested Caracara Caracara plancus | 2 | 2 | 0 |
| Common Crossbill Loxia curvirostra | Two-barred Crossbill Loxia leucoptera | 2 | 1 | 1 |
| Pomarine Skua Stercorarius pomarinus | Great Skua Stercorarius skua | 2 | 1 | 1 |
| Snail Kite Rostrhamus sociabilis | Red-shouldered Hawk Buteo lineatus | 2 | 1 | 1 |
| Arctic Skua Stercorarius parasiticus | Great Skua Stercorarius skua | 2 | 1 | 1 |
| Western Gull Larus occidentalis | Herring Gull Larus argentatus | 2 | 2 | 0 |
| Black Guillemot Cepphus grylle | Pigeon Guillemot Cepphus columba | 2 | 1 | 1 |
| Ross's Goose Anser rossii | Greater White-fronted Goose Anser albifrons | 2 | 2 | 0 |
| Northern Bobwhite Colinus virginianus | Shore Lark Eremophila alpestris | 2 | 2 | 0 |
| Red-footed Booby Sula sula | Masked Booby Sula dactylatra | 2 | 1 | 1 |
| American Goldfinch Spinus tristis | White-crowned Sparrow Zonotrichia leucophrys | 2 | 2 | 0 |
| Common Snipe Gallinago gallinago | Wilson's Snipe Gallinago delicata | 2 | 2 | 0 |
| American Goldfinch Spinus tristis | Yellow-rumped Warbler Setophaga coronata | 2 | 2 | 0 |
| Garganey Spatula querquedula | Blue-winged Teal Spatula discors | 2 | 1 | 1 |
| Western Gull Larus occidentalis | Varied Bunting Passerina versicolor | 1 | 1 | 0 |
| Herring Gull Larus argentatus | Yellow-legged Gull Larus michahellis | 1 | 0 | 1 |
| Herring Gull Larus argentatus | Black-capped Petrel Pterodroma hasitata | 1 | 0 | 1 |
| Yellow-legged Gull Larus michahellis | Lesser Black-backed Gull Larus fuscus | 1 | 0 | 1 |
| Yellow-legged Gull Larus michahellis | Great Crested Tern Thalasseus bergii | 1 | 0 | 1 |
| Great Black-backed Gull Larus marinus | California Gull Larus californicus | 1 | 1 | 0 |
| Glaucous Gull Larus hyperboreus | Glaucous-winged Gull Larus glaucescens | 1 | 1 | 0 |
| Lesser Black-backed Gull Larus fuscus | California Gull Larus californicus | 1 | 1 | 0 |
| California Gull Larus californicus | Glaucous-winged Gull Larus glaucescens | 1 | 0 | 1 |
| California Gull Larus californicus | Iceland Gull Larus glaucoides | 1 | 1 | 0 |
| Glaucous-winged Gull Larus glaucescens | Slaty-backed Gull Larus schistisagus | 1 | 0 | 1 |
| Glaucous-winged Gull Larus glaucescens | Iceland Gull Larus glaucoides | 1 | 0 | 1 |
| Glaucous-winged Gull Larus glaucescens | American Goldfinch Spinus tristis | 1 | 0 | 1 |
| Slaty-backed Gull Larus schistisagus | White Tern Gygis alba | 1 | 1 | 0 |
| Black Skimmer Rynchops niger | Caspian Tern Hydroprogne caspia | 1 | 1 | 0 |
| Black Skimmer Rynchops niger | Western Spindalis Spindalis zena | 1 | 1 | 0 |
| White Tern Gygis alba | Bushtit Psaltriparus minimus | 1 | 0 | 1 |
| White Tern Gygis alba | Golden-cheeked Warbler Setophaga chrysoparia | 1 | 1 | 0 |
| Brown Noddy Anous stolidus | Blue-grey Noddy Anous ceruleus | 1 | 0 | 1 |
| Brown Noddy Anous stolidus | Couch's Kingbird Tyrannus couchii | 1 | 1 | 0 |
| Brown Noddy Anous stolidus | Sedge Wren Cistothorus stellaris | 1 | 0 | 1 |
| Brown Noddy Anous stolidus | Poo-uli Melamprosops phaeosoma | 1 | 1 | 0 |
| Black Noddy Anous minutus | Aleutian Tern Onychoprion aleuticus | 1 | 1 | 0 |
| Black Noddy Anous minutus | Black-winged Petrel Pterodroma nigripennis | 1 | 1 | 0 |
| Aleutian Tern Onychoprion aleuticus | Short-tailed Albatross Phoebastria albatrus | 1 | 0 | 1 |
| Sooty Tern Onychoprion fuscatus | Grey-backed Tern Onychoprion lunatus | 1 | 1 | 0 |
| Sooty Tern Onychoprion fuscatus | Arctic Tern Sterna paradisaea | 1 | 1 | 0 |
| Sooty Tern Onychoprion fuscatus | California Towhee Melozone crissalis | 1 | 1 | 0 |
| Bridled Tern Onychoprion anaethetus | Least Tern Sternula antillarum | 1 | 1 | 0 |
| Grey-backed Tern Onychoprion lunatus | Gull-billed Tern Gelochelidon nilotica | 1 | 0 | 1 |
| Grey-backed Tern Onychoprion lunatus | Ruby-crowned Kinglet Corthylio calendula | 1 | 1 | 0 |
| Least Tern Sternula antillarum | Caspian Tern Hydroprogne caspia | 1 | 1 | 0 |
| Large-billed Tern Phaetusa simplex | Gull-billed Tern Gelochelidon nilotica | 1 | 1 | 0 |
| Large-billed Tern Phaetusa simplex | Great Crested Tern Thalasseus bergii | 1 | 0 | 1 |
| Gull-billed Tern Gelochelidon nilotica | Short-tailed Albatross Phoebastria albatrus | 1 | 0 | 1 |
| Gull-billed Tern Gelochelidon nilotica | Bonin Petrel Pterodroma hypoleuca | 1 | 0 | 1 |
| Caspian Tern Hydroprogne caspia | Whiskered Tern Chlidonias hybrida | 1 | 0 | 1 |
| Whiskered Tern Chlidonias hybrida | Black Tern Chlidonias niger | 1 | 1 | 0 |
| Whiskered Tern Chlidonias hybrida | White-winged Black Tern Chlidonias leucopterus | 1 | 1 | 0 |
| Black Tern Chlidonias niger | Black-browed Albatross Thalassarche melanophris | 1 | 1 | 0 |
| Black Tern Chlidonias niger | Great Shearwater Ardenna gravis | 1 | 0 | 1 |
| Forster's Tern Sterna forsteri | Arctic Tern Sterna paradisaea | 1 | 1 | 0 |
| Forster's Tern Sterna forsteri | Common Tern Sterna hirundo | 1 | 0 | 1 |
| Forster's Tern Sterna forsteri | Sandwich Tern Thalasseus sandvicensis | 1 | 0 | 1 |
| Forster's Tern Sterna forsteri | Ruby-crowned Kinglet Corthylio calendula | 1 | 0 | 1 |
| Arctic Tern Sterna paradisaea | Roseate Tern Sterna dougallii | 1 | 1 | 0 |
| Arctic Tern Sterna paradisaea | Common Redpoll Acanthis flammea | 1 | 0 | 1 |
| Roseate Tern Sterna dougallii | Band-rumped Storm-Petrel Hydrobates castro | 1 | 0 | 1 |
| Sandwich Tern Thalasseus sandvicensis | Great Crested Tern Thalasseus bergii | 1 | 1 | 0 |
| Sandwich Tern Thalasseus sandvicensis | Chinese Pond Heron Ardeola bacchus | 1 | 1 | 0 |
| Elegant Tern Thalasseus elegans | Royal Tern Thalasseus maximus | 1 | 1 | 0 |
| Elegant Tern Thalasseus elegans | Yucatan Vireo Vireo magister | 1 | 1 | 0 |
| Royal Tern Thalasseus maximus | Great Crested Tern Thalasseus bergii | 1 | 0 | 1 |
| White-tailed Tropicbird Phaethon lepturus | Red-billed Tropicbird Phaethon aethereus | 1 | 1 | 0 |
| White-tailed Tropicbird Phaethon lepturus | Red-tailed Tropicbird Phaethon rubricauda | 1 | 0 | 1 |
| White-tailed Tropicbird Phaethon lepturus | Yellow-billed Magpie Pica nuttalli | 1 | 0 | 1 |
| Red-tailed Tropicbird Phaethon rubricauda | Oahu Elepaio Chasiempis ibidis | 1 | 0 | 1 |
| Red-tailed Tropicbird Phaethon rubricauda | Kauai Amakihi Chlorodrepanis stejnegeri | 1 | 0 | 1 |
| Red-throated Diver Gavia stellata | Black-throated Diver Gavia arctica | 1 | 1 | 0 |
| Red-throated Diver Gavia stellata | Great Northern Diver Gavia immer | 1 | 0 | 1 |
| Black-throated Diver Gavia arctica | Great Northern Diver Gavia immer | 1 | 1 | 0 |
| Great Northern Diver Gavia immer | Anhinga Anhinga anhinga | 1 | 0 | 1 |
| White-billed Diver Gavia adamsii | Black-browed Albatross Thalassarche melanophris | 1 | 0 | 1 |
| Antipodean Albatross Diomedea antipodensis | Laysan Albatross Phoebastria immutabilis | 1 | 1 | 0 |
| Antipodean Albatross Diomedea antipodensis | Flesh-footed Shearwater Ardenna carneipes | 1 | 0 | 1 |
| Laysan Albatross Phoebastria immutabilis | Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos | 1 | 1 | 0 |
| Laysan Albatross Phoebastria immutabilis | Northern House Wren Troglodytes aedon | 1 | 1 | 0 |
| Black-footed Albatross Phoebastria nigripes | Short-tailed Albatross Phoebastria albatrus | 1 | 1 | 0 |
| Black-footed Albatross Phoebastria nigripes | Swallow-tailed Kite Elanoides forficatus | 1 | 1 | 0 |
| Short-tailed Albatross Phoebastria albatrus | Wilson's Storm-Petrel Oceanites oceanicus | 1 | 1 | 0 |
| Short-tailed Albatross Phoebastria albatrus | Osprey Pandion haliaetus | 1 | 1 | 0 |
| Short-tailed Albatross Phoebastria albatrus | Snail Kite Rostrhamus sociabilis | 1 | 0 | 1 |
| Light-mantled Albatross Phoebetria palpebrata | Black-browed Albatross Thalassarche melanophris | 1 | 0 | 1 |
| White-capped Albatross Thalassarche cauta | Sooty Shearwater Ardenna grisea | 1 | 1 | 0 |
| Chatham Albatross Thalassarche eremita | Black-browed Albatross Thalassarche melanophris | 1 | 1 | 0 |
| Wilson's Storm-Petrel Oceanites oceanicus | Townsend's Storm-Petrel Hydrobates socorroensis | 1 | 0 | 1 |
| Wilson's Storm-Petrel Oceanites oceanicus | Swinhoe's Storm-Petrel Hydrobates monorhis | 1 | 0 | 1 |
| White-faced Storm-Petrel Pelagodroma marina | Fork-tailed Storm-Petrel Hydrobates furcatus | 1 | 1 | 0 |
| White-faced Storm-Petrel Pelagodroma marina | Cook's Petrel Pterodroma cookii | 1 | 0 | 1 |
| European Storm-Petrel Hydrobates pelagicus | Loggerhead Shrike Lanius ludovicianus | 1 | 1 | 0 |
| Fork-tailed Storm-Petrel Hydrobates furcatus | Townsend's Storm-Petrel Hydrobates socorroensis | 1 | 1 | 0 |
| Fork-tailed Storm-Petrel Hydrobates furcatus | Black Storm-Petrel Hydrobates melania | 1 | 0 | 1 |
| Fork-tailed Storm-Petrel Hydrobates furcatus | Eastern Meadowlark Sturnella magna | 1 | 0 | 1 |
| Leach's Storm-Petrel Hydrobates leucorhous | Jouanin's Petrel Bulweria fallax | 1 | 0 | 1 |
| Leach's Storm-Petrel Hydrobates leucorhous | Louisiana Waterthrush Parkesia motacilla | 1 | 1 | 0 |
| Townsend's Storm-Petrel Hydrobates socorroensis | Bronzed Cowbird Molothrus aeneus | 1 | 0 | 1 |
| Ainley's Storm-Petrel Hydrobates cheimomnestes | Band-rumped Storm-Petrel Hydrobates castro | 1 | 1 | 0 |
| Ainley's Storm-Petrel Hydrobates cheimomnestes | Black Storm-Petrel Hydrobates melania | 1 | 1 | 0 |
| Ainley's Storm-Petrel Hydrobates cheimomnestes | Tristram's Storm-Petrel Hydrobates tristrami | 1 | 0 | 1 |
| Ainley's Storm-Petrel Hydrobates cheimomnestes | Omao Myadestes obscurus | 1 | 1 | 0 |
| Swinhoe's Storm-Petrel Hydrobates monorhis | Bulwer's Petrel Bulweria bulwerii | 1 | 1 | 0 |
| Ashy Storm-Petrel Hydrobates homochroa | Tristram's Storm-Petrel Hydrobates tristrami | 1 | 0 | 1 |
| Band-rumped Storm-Petrel Hydrobates castro | Blue-grey Gnatcatcher Polioptila caerulea | 1 | 0 | 1 |
| Wedge-rumped Storm-Petrel Hydrobates tethys | Tristram's Storm-Petrel Hydrobates tristrami | 1 | 1 | 0 |
| Wedge-rumped Storm-Petrel Hydrobates tethys | Cook's Petrel Pterodroma cookii | 1 | 0 | 1 |
| Wedge-rumped Storm-Petrel Hydrobates tethys | Cory's Shearwater Calonectris diomedea | 1 | 1 | 0 |
| Black Storm-Petrel Hydrobates melania | Least Storm-Petrel Hydrobates microsoma | 1 | 1 | 0 |
| Least Storm-Petrel Hydrobates microsoma | Bulwer's Petrel Bulweria bulwerii | 1 | 1 | 0 |
| Least Storm-Petrel Hydrobates microsoma | Greater Pewee Contopus pertinax | 1 | 0 | 1 |
| Northern Fulmar Fulmarus glacialis | Cory's Shearwater Calonectris diomedea | 1 | 1 | 0 |
| Northern Fulmar Fulmarus glacialis | Flesh-footed Shearwater Ardenna carneipes | 1 | 0 | 1 |
| Kermadec Petrel Pterodroma neglecta | Trindade Petrel Pterodroma arminjoniana | 1 | 1 | 0 |
| Kermadec Petrel Pterodroma neglecta | Herald Petrel Pterodroma heraldica | 1 | 1 | 0 |
| Kermadec Petrel Pterodroma neglecta | Great Shearwater Ardenna gravis | 1 | 1 | 0 |
| Trindade Petrel Pterodroma arminjoniana | Black-capped Petrel Pterodroma hasitata | 1 | 1 | 0 |
| Herald Petrel Pterodroma heraldica | Murphy's Petrel Pterodroma ultima | 1 | 0 | 1 |
| Murphy's Petrel Pterodroma ultima | Mottled Petrel Pterodroma inexpectata | 1 | 0 | 1 |
| Zino's Petrel Pterodroma madeira | Fea's Petrel Pterodroma feae | 1 | 1 | 0 |
| Zino's Petrel Pterodroma madeira | Mottled Petrel Pterodroma inexpectata | 1 | 0 | 1 |
| Zino's Petrel Pterodroma madeira | Bermuda Petrel Pterodroma cahow | 1 | 1 | 0 |
| Fea's Petrel Pterodroma feae | Hawaiian Petrel Pterodroma sandwichensis | 1 | 1 | 0 |
| Fea's Petrel Pterodroma feae | Great Shearwater Ardenna gravis | 1 | 1 | 0 |
| Bermuda Petrel Pterodroma cahow | Hawaiian Petrel Pterodroma sandwichensis | 1 | 1 | 0 |
| Black-capped Petrel Pterodroma hasitata | Juan Fernandez Petrel Pterodroma externa | 1 | 0 | 1 |
| Hawaiian Petrel Pterodroma sandwichensis | Cory's Shearwater Calonectris diomedea | 1 | 1 | 0 |
| Hawaiian Petrel Pterodroma sandwichensis | Siberian Accentor Prunella montanella | 1 | 0 | 1 |
| Hawaiian Petrel Pterodroma sandwichensis | Akohekohe Palmeria dolei | 1 | 0 | 1 |
| Bonin Petrel Pterodroma hypoleuca | Bulwer's Petrel Bulweria bulwerii | 1 | 0 | 1 |
| Bulwer's Petrel Bulweria bulwerii | Cory's Shearwater Calonectris diomedea | 1 | 1 | 0 |
| Bulwer's Petrel Bulweria bulwerii | Great Shearwater Ardenna gravis | 1 | 1 | 0 |
| Jouanin's Petrel Bulweria fallax | White-chinned Petrel Procellaria aequinoctialis | 1 | 0 | 1 |
| Parkinson's Petrel Procellaria parkinsoni | Streaked Shearwater Calonectris leucomelas | 1 | 0 | 1 |
| Cory's Shearwater Calonectris diomedea | Flesh-footed Shearwater Ardenna carneipes | 1 | 1 | 0 |
| Cory's Shearwater Calonectris diomedea | Yellow-faced Grassquit Tiaris olivaceus | 1 | 0 | 1 |
| Cape Verde Shearwater Calonectris edwardsii | Pink-footed Shearwater Ardenna creatopus | 1 | 0 | 1 |
| Pink-footed Shearwater Ardenna creatopus | Great Shearwater Ardenna gravis | 1 | 1 | 0 |
| Flesh-footed Shearwater Ardenna carneipes | Great Shearwater Ardenna gravis | 1 | 0 | 1 |
| Flesh-footed Shearwater Ardenna carneipes | Double-crested Cormorant Nannopterum auritum | 1 | 1 | 0 |
| Great Shearwater Ardenna gravis | Buller's Shearwater Ardenna bulleri | 1 | 0 | 1 |
| Great Shearwater Ardenna gravis | Newell's Shearwater Puffinus newelli | 1 | 0 | 1 |
| Great Shearwater Ardenna gravis | Black-vented Shearwater Puffinus opisthomelas | 1 | 0 | 1 |
| Great Shearwater Ardenna gravis | Sargasso Shearwater Puffinus lherminieri | 1 | 0 | 1 |
| Wedge-tailed Shearwater Ardenna pacifica | Short-tailed Shearwater Ardenna tenuirostris | 1 | 0 | 1 |
| Wedge-tailed Shearwater Ardenna pacifica | Christmas Shearwater Puffinus nativitatis | 1 | 0 | 1 |
| Buller's Shearwater Ardenna bulleri | Short-tailed Shearwater Ardenna tenuirostris | 1 | 1 | 0 |
| Sooty Shearwater Ardenna grisea | Christmas Shearwater Puffinus nativitatis | 1 | 0 | 1 |
| Sooty Shearwater Ardenna grisea | Manx Shearwater Puffinus puffinus | 1 | 1 | 0 |
| Short-tailed Shearwater Ardenna tenuirostris | Black-vented Shearwater Puffinus opisthomelas | 1 | 0 | 1 |
| Short-tailed Shearwater Ardenna tenuirostris | Swallow-tailed Kite Elanoides forficatus | 1 | 1 | 0 |
| Short-tailed Shearwater Ardenna tenuirostris | Thick-billed Kingbird Tyrannus crassirostris | 1 | 0 | 1 |
| Short-tailed Shearwater Ardenna tenuirostris | Townsend's Solitaire Myadestes townsendi | 1 | 1 | 0 |
| Christmas Shearwater Puffinus nativitatis | Black-vented Shearwater Puffinus opisthomelas | 1 | 1 | 0 |
| Newell's Shearwater Puffinus newelli | Black-vented Shearwater Puffinus opisthomelas | 1 | 0 | 1 |
| Newell's Shearwater Puffinus newelli | Wood Stork Mycteria americana | 1 | 0 | 1 |
| Barolo Shearwater Puffinus baroli | Sargasso Shearwater Puffinus lherminieri | 1 | 0 | 1 |
| Sargasso Shearwater Puffinus lherminieri | Jabiru Jabiru mycteria | 1 | 1 | 0 |
| Magnificent Frigatebird Fregata magnificens | Lesser Frigatebird Fregata ariel | 1 | 0 | 1 |
| Magnificent Frigatebird Fregata magnificens | Brown Booby Sula leucogaster | 1 | 1 | 0 |
| Magnificent Frigatebird Fregata magnificens | Rusty Blackbird Euphagus carolinus | 1 | 0 | 1 |
| Great Frigatebird Fregata minor | Northern Gannet Morus bassanus | 1 | 1 | 0 |
| Great Frigatebird Fregata minor | Dusky Flycatcher Empidonax oberholseri | 1 | 0 | 1 |
| Northern Gannet Morus bassanus | Red-footed Booby Sula sula | 1 | 0 | 1 |
| Northern Gannet Morus bassanus | Masked Tityra Tityra semifasciata | 1 | 1 | 0 |
| Red-footed Booby Sula sula | Brown Booby Sula leucogaster | 1 | 1 | 0 |
| Red-footed Booby Sula sula | Hawaii Akepa Loxops coccineus | 1 | 1 | 0 |
| Brown Booby Sula leucogaster | Masked Booby Sula dactylatra | 1 | 0 | 1 |
| Brown Booby Sula leucogaster | Blue-footed Booby Sula nebouxii | 1 | 1 | 0 |
| Brown Booby Sula leucogaster | Anhinga Anhinga anhinga | 1 | 1 | 0 |
| Brown Booby Sula leucogaster | Ruby-crowned Kinglet Corthylio calendula | 1 | 1 | 0 |
| Masked Booby Sula dactylatra | Grey Flycatcher Empidonax wrightii | 1 | 1 | 0 |
| Masked Booby Sula dactylatra | Canada Jay Perisoreus canadensis | 1 | 0 | 1 |
| Nazca Booby Sula granti | Blue-footed Booby Sula nebouxii | 1 | 1 | 0 |
| Anhinga Anhinga anhinga | Red-faced Cormorant Urile urile | 1 | 1 | 0 |
| Red-faced Cormorant Urile urile | Double-crested Cormorant Nannopterum auritum | 1 | 1 | 0 |
| Pelagic Cormorant Urile pelagicus | Great Cormorant Phalacrocorax carbo | 1 | 1 | 0 |
| Pelagic Cormorant Urile pelagicus | Slate-throated Redstart Myioborus miniatus | 1 | 1 | 0 |
| Great Cormorant Phalacrocorax carbo | Neotropic Cormorant Nannopterum brasilianum | 1 | 0 | 1 |
| American White Pelican Pelecanus erythrorhynchos | Brown Pelican Pelecanus occidentalis | 1 | 0 | 1 |
| Bare-throated Tiger-Heron Tigrisoma mexicanum | American Bittern Botaurus lentiginosus | 1 | 1 | 0 |
| American Bittern Botaurus lentiginosus | Least Bittern Botaurus exilis | 1 | 0 | 1 |
| Least Bittern Botaurus exilis | Yellow Bittern Botaurus sinensis | 1 | 0 | 1 |
| Least Bittern Botaurus exilis | Black-crowned Night Heron Nycticorax nycticorax | 1 | 0 | 1 |
| Least Bittern Botaurus exilis | Marsh Wren Cistothorus palustris | 1 | 0 | 1 |
| Yellow Bittern Botaurus sinensis | Chinese Pond Heron Ardeola bacchus | 1 | 0 | 1 |
| Little Blue Heron Egretta caerulea | Reddish Egret Egretta rufescens | 1 | 1 | 0 |
| Little Blue Heron Egretta caerulea | Chinese Pond Heron Ardeola bacchus | 1 | 0 | 1 |
| Snowy Egret Egretta thula | Chinese Pond Heron Ardeola bacchus | 1 | 1 | 0 |
| Little Egret Egretta garzetta | Cassin's Sparrow Peucaea cassinii | 1 | 0 | 1 |
| Western Reef-Heron Egretta gularis | Chinese Pond Heron Ardeola bacchus | 1 | 1 | 0 |
| Western Cattle-Egret Ardea ibis | Eastern Cattle-Egret Ardea coromanda | 1 | 0 | 1 |
| Western Cattle-Egret Ardea ibis | Great White Egret Ardea alba | 1 | 0 | 1 |
| White Ibis Eudocimus albus | Lapland Bunting Calcarius lapponicus | 1 | 1 | 0 |
| Glossy Ibis Plegadis falcinellus | White-faced Ibis Plegadis chihi | 1 | 0 | 1 |
| California Condor Gymnogyps californianus | Turkey Vulture Cathartes aura | 1 | 0 | 1 |
| American Black Vulture Coragyps atratus | Turkey Vulture Cathartes aura | 1 | 0 | 1 |
| Turkey Vulture Cathartes aura | American Crow Corvus brachyrhynchos | 1 | 0 | 1 |
| Turkey Vulture Cathartes aura | Common Raven Corvus corax | 1 | 0 | 1 |
| Turkey Vulture Cathartes aura | Tufted Titmouse Baeolophus bicolor | 1 | 1 | 0 |
| Turkey Vulture Cathartes aura | Purple Martin Progne subis | 1 | 1 | 0 |
| Turkey Vulture Cathartes aura | Marsh Wren Cistothorus palustris | 1 | 1 | 0 |
| White-tailed Kite Elanus leucurus | Hook-billed Kite Chondrohierax uncinatus | 1 | 1 | 0 |
| White-tailed Kite Elanus leucurus | Red-tailed Hawk Buteo jamaicensis | 1 | 1 | 0 |
| Hook-billed Kite Chondrohierax uncinatus | Golden Eagle Aquila chrysaetos | 1 | 1 | 0 |
| Hook-billed Kite Chondrohierax uncinatus | Grey Hawk Buteo plagiatus | 1 | 1 | 0 |
| Crested Honey-buzzard Pernis ptilorhynchus | Golden Eagle Aquila chrysaetos | 1 | 0 | 1 |
| Crested Honey-buzzard Pernis ptilorhynchus | Ferruginous Hawk Buteo regalis | 1 | 1 | 0 |
| Golden Eagle Aquila chrysaetos | Common Black Hawk Buteogallus anthracinus | 1 | 0 | 1 |
| Golden Eagle Aquila chrysaetos | Short-tailed Hawk Buteo brachyurus | 1 | 1 | 0 |
| Golden Eagle Aquila chrysaetos | Red-tailed Hawk Buteo jamaicensis | 1 | 0 | 1 |
| Snail Kite Rostrhamus sociabilis | Western Marsh Harrier Circus aeruginosus | 1 | 1 | 0 |
| Snail Kite Rostrhamus sociabilis | Harris's Hawk Parabuteo unicinctus | 1 | 1 | 0 |
| Snail Kite Rostrhamus sociabilis | Hawaiian Hawk Buteo solitarius | 1 | 0 | 1 |
| Double-toothed Kite Harpagus bidentatus | Western Marsh Harrier Circus aeruginosus | 1 | 1 | 0 |
| Double-toothed Kite Harpagus bidentatus | Hen Harrier Circus cyaneus | 1 | 1 | 0 |
| Mississippi Kite Ictinia mississippiensis | Northern Harrier Circus hudsonius | 1 | 0 | 1 |
| Mississippi Kite Ictinia mississippiensis | Sharp-shinned Hawk Accipiter striatus | 1 | 1 | 0 |
| Mississippi Kite Ictinia mississippiensis | Cooper's Hawk Astur cooperii | 1 | 1 | 0 |
| Mississippi Kite Ictinia mississippiensis | Hawaiian Hawk Buteo solitarius | 1 | 0 | 1 |
| Mississippi Kite Ictinia mississippiensis | Swainson's Hawk Buteo swainsoni | 1 | 1 | 0 |
| Mississippi Kite Ictinia mississippiensis | Black-capped Vireo Vireo atricapilla | 1 | 0 | 1 |
| Western Marsh Harrier Circus aeruginosus | Long-legged Buzzard Buteo rufinus | 1 | 0 | 1 |
| Hen Harrier Circus cyaneus | Northern Harrier Circus hudsonius | 1 | 1 | 0 |
| Hen Harrier Circus cyaneus | Chinese Sparrowhawk Tachyspiza soloensis | 1 | 0 | 1 |
| Hen Harrier Circus cyaneus | Fieldfare Turdus pilaris | 1 | 1 | 0 |
| Northern Harrier Circus hudsonius | Harris's Hawk Parabuteo unicinctus | 1 | 0 | 1 |
| Northern Harrier Circus hudsonius | Hawaiian Hawk Buteo solitarius | 1 | 0 | 1 |
| Northern Harrier Circus hudsonius | Red-tailed Hawk Buteo jamaicensis | 1 | 0 | 1 |
| Chinese Sparrowhawk Tachyspiza soloensis | Eurasian Sparrowhawk Accipiter nisus | 1 | 1 | 0 |
| Eurasian Sparrowhawk Accipiter nisus | Sharp-shinned Hawk Accipiter striatus | 1 | 1 | 0 |
| Sharp-shinned Hawk Accipiter striatus | Eurasian Goshawk Astur gentilis | 1 | 1 | 0 |
| Sharp-shinned Hawk Accipiter striatus | Harris's Hawk Parabuteo unicinctus | 1 | 1 | 0 |
| Sharp-shinned Hawk Accipiter striatus | White-tailed Hawk Geranoaetus albicaudatus | 1 | 0 | 1 |
| Sharp-shinned Hawk Accipiter striatus | Red-shouldered Hawk Buteo lineatus | 1 | 0 | 1 |
| Cooper's Hawk Astur cooperii | American Goshawk Astur atricapillus | 1 | 0 | 1 |
| Cooper's Hawk Astur cooperii | Bald Eagle Haliaeetus leucocephalus | 1 | 1 | 0 |
| Cooper's Hawk Astur cooperii | Crane Hawk Geranospiza caerulescens | 1 | 1 | 0 |
| Cooper's Hawk Astur cooperii | Broad-winged Hawk Buteo platypterus | 1 | 1 | 0 |
| Cooper's Hawk Astur cooperii | Hawaiian Hawk Buteo solitarius | 1 | 0 | 1 |
| Cooper's Hawk Astur cooperii | Short-tailed Hawk Buteo brachyurus | 1 | 0 | 1 |
| Cooper's Hawk Astur cooperii | Lark Bunting Calamospiza melanocorys | 1 | 0 | 1 |
| Eurasian Goshawk Astur gentilis | American Goshawk Astur atricapillus | 1 | 0 | 1 |
| Eurasian Goshawk Astur gentilis | Steller's Sea-Eagle Haliaeetus pelagicus | 1 | 1 | 0 |
| Eurasian Goshawk Astur gentilis | Great Black Hawk Buteogallus urubitinga | 1 | 0 | 1 |
| American Goshawk Astur atricapillus | Black Kite Milvus migrans | 1 | 0 | 1 |
| Black Kite Milvus migrans | Steller's Sea-Eagle Haliaeetus pelagicus | 1 | 1 | 0 |
| Steller's Sea-Eagle Haliaeetus pelagicus | White-tailed Eagle Haliaeetus albicilla | 1 | 0 | 1 |
| White-tailed Eagle Haliaeetus albicilla | Broad-winged Hawk Buteo platypterus | 1 | 1 | 0 |
| White-tailed Eagle Haliaeetus albicilla | Short-tailed Hawk Buteo brachyurus | 1 | 0 | 1 |
| White-tailed Eagle Haliaeetus albicilla | Swainson's Hawk Buteo swainsoni | 1 | 0 | 1 |
| Bald Eagle Haliaeetus leucocephalus | Harris's Hawk Parabuteo unicinctus | 1 | 0 | 1 |
| Crane Hawk Geranospiza caerulescens | Common Black Hawk Buteogallus anthracinus | 1 | 1 | 0 |
| Crane Hawk Geranospiza caerulescens | Great Black Hawk Buteogallus urubitinga | 1 | 0 | 1 |
| Crane Hawk Geranospiza caerulescens | Grey Hawk Buteo plagiatus | 1 | 1 | 0 |
| Crane Hawk Geranospiza caerulescens | Hawaiian Hawk Buteo solitarius | 1 | 1 | 0 |
| Crane Hawk Geranospiza caerulescens | Short-tailed Hawk Buteo brachyurus | 1 | 1 | 0 |
| Crane Hawk Geranospiza caerulescens | Red-tailed Hawk Buteo jamaicensis | 1 | 0 | 1 |
| Common Black Hawk Buteogallus anthracinus | Great Black Hawk Buteogallus urubitinga | 1 | 0 | 1 |
| Common Black Hawk Buteogallus anthracinus | Roadside Hawk Rupornis magnirostris | 1 | 0 | 1 |
| Common Black Hawk Buteogallus anthracinus | Harris's Hawk Parabuteo unicinctus | 1 | 0 | 1 |
| Common Black Hawk Buteogallus anthracinus | Ferruginous Hawk Buteo regalis | 1 | 0 | 1 |
| Great Black Hawk Buteogallus urubitinga | Zone-tailed Hawk Buteo albonotatus | 1 | 0 | 1 |
| Roadside Hawk Rupornis magnirostris | Harris's Hawk Parabuteo unicinctus | 1 | 1 | 0 |
| Roadside Hawk Rupornis magnirostris | White-tailed Hawk Geranoaetus albicaudatus | 1 | 0 | 1 |
| Roadside Hawk Rupornis magnirostris | Grey Hawk Buteo plagiatus | 1 | 1 | 0 |
| Roadside Hawk Rupornis magnirostris | Red-tailed Hawk Buteo jamaicensis | 1 | 1 | 0 |
| Harris's Hawk Parabuteo unicinctus | White-tailed Hawk Geranoaetus albicaudatus | 1 | 0 | 1 |
| Harris's Hawk Parabuteo unicinctus | Red-tailed Hawk Buteo jamaicensis | 1 | 1 | 0 |
| White-tailed Hawk Geranoaetus albicaudatus | Grey Hawk Buteo plagiatus | 1 | 0 | 1 |
| White-tailed Hawk Geranoaetus albicaudatus | Broad-winged Hawk Buteo platypterus | 1 | 1 | 0 |
| White-tailed Hawk Geranoaetus albicaudatus | Hawaiian Hawk Buteo solitarius | 1 | 0 | 1 |
| White-tailed Hawk Geranoaetus albicaudatus | Red-tailed Hawk Buteo jamaicensis | 1 | 0 | 1 |
| White-tailed Hawk Geranoaetus albicaudatus | American Kestrel Falco sparverius | 1 | 0 | 1 |
| Hawaiian Hawk Buteo solitarius | Zone-tailed Hawk Buteo albonotatus | 1 | 1 | 0 |
| Hawaiian Hawk Buteo solitarius | Red-tailed Hawk Buteo jamaicensis | 1 | 1 | 0 |
| Zone-tailed Hawk Buteo albonotatus | Ferruginous Hawk Buteo regalis | 1 | 1 | 0 |
| Rough-legged Buzzard Buteo lagopus | Common Raven Corvus corax | 1 | 0 | 1 |
| Oriental Scops Owl Otus sunia | Flammulated Owl Psiloscops flammeolus | 1 | 1 | 0 |
| Flammulated Owl Psiloscops flammeolus | Western Screech-Owl Megascops kennicottii | 1 | 0 | 1 |
| Flammulated Owl Psiloscops flammeolus | Eastern Screech-Owl Megascops asio | 1 | 1 | 0 |
| Flammulated Owl Psiloscops flammeolus | Great Horned Owl Bubo virginianus | 1 | 1 | 0 |
| Flammulated Owl Psiloscops flammeolus | Northern Pygmy-Owl Glaucidium gnoma | 1 | 1 | 0 |
| Whiskered Screech-Owl Megascops trichopsis | Eastern Screech-Owl Megascops asio | 1 | 1 | 0 |
| Western Screech-Owl Megascops kennicottii | Elf Owl Micrathene whitneyi | 1 | 1 | 0 |
| Eastern Screech-Owl Megascops asio | Elf Owl Micrathene whitneyi | 1 | 1 | 0 |
| Eastern Screech-Owl Megascops asio | Spotted Owl Strix occidentalis | 1 | 1 | 0 |
| Northern Hawk Owl Surnia ulula | Elf Owl Micrathene whitneyi | 1 | 1 | 0 |
| Ferruginous Pygmy-Owl Glaucidium brasilianum | Elf Owl Micrathene whitneyi | 1 | 0 | 1 |
| Elf Owl Micrathene whitneyi | Mottled Owl Strix virgata | 1 | 0 | 1 |
| Elf Owl Micrathene whitneyi | Barred Owl Strix varia | 1 | 1 | 0 |
| Elf Owl Micrathene whitneyi | Northern Boobook Ninox japonica | 1 | 0 | 1 |
| Burrowing Owl Athene cunicularia | Northern Saw-whet Owl Aegolius acadicus | 1 | 0 | 1 |
| Mottled Owl Strix virgata | Short-eared Owl Asio flammeus | 1 | 1 | 0 |
| Spotted Owl Strix occidentalis | Barred Owl Strix varia | 1 | 1 | 0 |
| Barred Owl Strix varia | Long-eared Owl Asio otus | 1 | 1 | 0 |
| Barred Owl Strix varia | Stygian Owl Asio stygius | 1 | 0 | 1 |
| Great Grey Owl Strix nebulosa | Stygian Owl Asio stygius | 1 | 0 | 1 |
| Short-eared Owl Asio flammeus | Tengmalm's Owl Aegolius funereus | 1 | 1 | 0 |
| Short-eared Owl Asio flammeus | Northern Saw-whet Owl Aegolius acadicus | 1 | 0 | 1 |
| Tengmalm's Owl Aegolius funereus | Northern Boobook Ninox japonica | 1 | 1 | 0 |
| Elegant Trogon Trogon elegans | Clark's Nutcracker Nucifraga columbiana | 1 | 1 | 0 |
| Ringed Kingfisher Megaceryle torquata | Belted Kingfisher Megaceryle alcyon | 1 | 1 | 0 |
| Ringed Kingfisher Megaceryle torquata | Amazon Kingfisher Chloroceryle amazona | 1 | 0 | 1 |
| Ringed Kingfisher Megaceryle torquata | Green Jay Cyanocorax yncas | 1 | 0 | 1 |
| Williamson's Sapsucker Sphyrapicus thyroideus | Red-naped Sapsucker Sphyrapicus nuchalis | 1 | 0 | 1 |
| Williamson's Sapsucker Sphyrapicus thyroideus | Red-breasted Sapsucker Sphyrapicus ruber | 1 | 0 | 1 |
| Red-naped Sapsucker Sphyrapicus nuchalis | Red-breasted Sapsucker Sphyrapicus ruber | 1 | 0 | 1 |
| Red-naped Sapsucker Sphyrapicus nuchalis | Lewis's Woodpecker Melanerpes lewis | 1 | 0 | 1 |
| Red-naped Sapsucker Sphyrapicus nuchalis | Great Spotted Woodpecker Dendrocopos major | 1 | 1 | 0 |
| Red-breasted Sapsucker Sphyrapicus ruber | Lewis's Woodpecker Melanerpes lewis | 1 | 0 | 1 |
| Red-breasted Sapsucker Sphyrapicus ruber | Red-headed Woodpecker Melanerpes erythrocephalus | 1 | 0 | 1 |
| Red-breasted Sapsucker Sphyrapicus ruber | Nuttall's Woodpecker Dryobates nuttallii | 1 | 1 | 0 |
| Red-breasted Sapsucker Sphyrapicus ruber | Omao Myadestes obscurus | 1 | 1 | 0 |
| Lewis's Woodpecker Melanerpes lewis | Arizona Woodpecker Leuconotopicus arizonae | 1 | 0 | 1 |
| Red-headed Woodpecker Melanerpes erythrocephalus | Great Spotted Woodpecker Dendrocopos major | 1 | 0 | 1 |
| Red-headed Woodpecker Melanerpes erythrocephalus | Gilded Flicker Colaptes chrysoides | 1 | 0 | 1 |
| Gila Woodpecker Melanerpes uropygialis | Red-bellied Woodpecker Melanerpes carolinus | 1 | 1 | 0 |
| Gila Woodpecker Melanerpes uropygialis | Masked Tityra Tityra semifasciata | 1 | 0 | 1 |
| Gila Woodpecker Melanerpes uropygialis | Cactus Wren Campylorhynchus brunneicapillus | 1 | 1 | 0 |
| Golden-fronted Woodpecker Melanerpes aurifrons | American Three-toed Woodpecker Picoides dorsalis | 1 | 0 | 1 |
| Golden-fronted Woodpecker Melanerpes aurifrons | Nuttall's Woodpecker Dryobates nuttallii | 1 | 1 | 0 |
| Golden-fronted Woodpecker Melanerpes aurifrons | Rufous-backed Robin Turdus rufopalliatus | 1 | 0 | 1 |
| Red-bellied Woodpecker Melanerpes carolinus | Dark-eyed Junco Junco hyemalis | 1 | 1 | 0 |
| Great Spotted Woodpecker Dendrocopos major | Downy Woodpecker Dryobates pubescens | 1 | 0 | 1 |
| Downy Woodpecker Dryobates pubescens | Tree Swallow Tachycineta bicolor | 1 | 1 | 0 |
| Downy Woodpecker Dryobates pubescens | Barn Swallow Hirundo rustica | 1 | 1 | 0 |
| Downy Woodpecker Dryobates pubescens | Western Meadowlark Sturnella neglecta | 1 | 1 | 0 |
| Downy Woodpecker Dryobates pubescens | Red-winged Blackbird Agelaius phoeniceus | 1 | 0 | 1 |
| Red-cockaded Woodpecker Leuconotopicus borealis | Red-breasted Nuthatch Sitta canadensis | 1 | 0 | 1 |
| Gilded Flicker Colaptes chrysoides | Northern Parula Setophaga americana | 1 | 0 | 1 |
| Collared Forest-Falcon Micrastur semitorquatus | Crested Caracara Caracara plancus | 1 | 0 | 1 |
| Collared Forest-Falcon Micrastur semitorquatus | Common Kestrel Falco tinnunculus | 1 | 1 | 0 |
| Collared Forest-Falcon Micrastur semitorquatus | Merlin Falco columbarius | 1 | 1 | 0 |
| Common Kestrel Falco tinnunculus | Red-footed Falcon Falco vespertinus | 1 | 0 | 1 |
| Common Kestrel Falco tinnunculus | Gyr Falcon Falco rusticolus | 1 | 0 | 1 |
| Common Kestrel Falco tinnunculus | Prairie Falcon Falco mexicanus | 1 | 0 | 1 |
| Common Kestrel Falco tinnunculus | Philadelphia Vireo Vireo philadelphicus | 1 | 0 | 1 |
| American Kestrel Falco sparverius | Merlin Falco columbarius | 1 | 1 | 0 |
| American Kestrel Falco sparverius | Peregrine Falcon Falco peregrinus | 1 | 1 | 0 |
| American Kestrel Falco sparverius | Prairie Falcon Falco mexicanus | 1 | 0 | 1 |
| Red-footed Falcon Falco vespertinus | Bat Falcon Falco rufigularis | 1 | 1 | 0 |
| Merlin Falco columbarius | Aplomado Falcon Falco femoralis | 1 | 1 | 0 |
| Merlin Falco columbarius | Prairie Falcon Falco mexicanus | 1 | 0 | 1 |
| Eurasian Hobby Falco subbuteo | Bat Falcon Falco rufigularis | 1 | 0 | 1 |
| Bat Falcon Falco rufigularis | Prairie Falcon Falco mexicanus | 1 | 0 | 1 |
| Peregrine Falcon Falco peregrinus | Prairie Falcon Falco mexicanus | 1 | 1 | 0 |
| Masked Tityra Tityra semifasciata | Olive-sided Flycatcher Contopus cooperi | 1 | 1 | 0 |
| Masked Tityra Tityra semifasciata | Eastern Wood-Pewee Contopus virens | 1 | 1 | 0 |
| Masked Tityra Tityra semifasciata | Apapane Himatione sanguinea | 1 | 0 | 1 |
| Grey-collared Becard Pachyramphus major | Northern Beardless-Tyrannulet Camptostoma imberbe | 1 | 1 | 0 |
| Rose-throated Becard Pachyramphus aglaiae | Northern Beardless-Tyrannulet Camptostoma imberbe | 1 | 1 | 0 |
| Rose-throated Becard Pachyramphus aglaiae | Black Catbird Melanoptila glabrirostris | 1 | 1 | 0 |
| Rose-throated Becard Pachyramphus aglaiae | Common Yellowthroat Geothlypis trichas | 1 | 1 | 0 |
| Northern Beardless-Tyrannulet Camptostoma imberbe | Greenish Elaenia Myiopagis viridicata | 1 | 0 | 1 |
| Northern Beardless-Tyrannulet Camptostoma imberbe | Yellow-bellied Flycatcher Empidonax flaviventris | 1 | 1 | 0 |
| Northern Beardless-Tyrannulet Camptostoma imberbe | Woodhouse's Scrub-Jay Aphelocoma woodhouseii | 1 | 1 | 0 |
| Northern Beardless-Tyrannulet Camptostoma imberbe | Oak Titmouse Baeolophus inornatus | 1 | 1 | 0 |
| Greenish Elaenia Myiopagis viridicata | Grey-streaked Flycatcher Muscicapa griseisticta | 1 | 1 | 0 |
| Greenish Elaenia Myiopagis viridicata | Seaside Sparrow Ammospiza maritima | 1 | 0 | 1 |
| Greenish Elaenia Myiopagis viridicata | Crimson-collared Grosbeak Periporphyrus celaeno | 1 | 0 | 1 |
| Greenish Elaenia Myiopagis viridicata | Painted Bunting Passerina ciris | 1 | 1 | 0 |
| Small-billed Elaenia Elaenia parvirostris | Yellow-bellied Flycatcher Empidonax flaviventris | 1 | 1 | 0 |
| White-crested Elaenia Elaenia albiceps | Ash-throated Flycatcher Myiarchus cinerascens | 1 | 1 | 0 |
| Tufted Flycatcher Mitrephanes phaeocercus | Western Wood-Pewee Contopus sordidulus | 1 | 1 | 0 |
| Tufted Flycatcher Mitrephanes phaeocercus | Buff-breasted Flycatcher Empidonax fulvifrons | 1 | 0 | 1 |
| Tufted Flycatcher Mitrephanes phaeocercus | Mexican Fan-tailed Warbler Euthlypis lachrymosa | 1 | 0 | 1 |
| Olive-sided Flycatcher Contopus cooperi | Eastern Wood-Pewee Contopus virens | 1 | 1 | 0 |
| Olive-sided Flycatcher Contopus cooperi | Great Crested Flycatcher Myiarchus crinitus | 1 | 0 | 1 |
| Greater Pewee Contopus pertinax | Brown-chested Martin Progne tapera | 1 | 1 | 0 |
| Greater Pewee Contopus pertinax | Black-tailed Gnatcatcher Polioptila melanura | 1 | 1 | 0 |
| Western Wood-Pewee Contopus sordidulus | Yellow-bellied Flycatcher Empidonax flaviventris | 1 | 1 | 0 |
| Western Wood-Pewee Contopus sordidulus | Chipping Sparrow Spizella passerina | 1 | 0 | 1 |
| Eastern Wood-Pewee Contopus virens | Yellow-bellied Flycatcher Empidonax flaviventris | 1 | 0 | 1 |
| Cuban Pewee Contopus caribaeus | Blue-winged Warbler Vermivora cyanoptera | 1 | 0 | 1 |
| Acadian Flycatcher Empidonax virescens | Willow Flycatcher Empidonax traillii | 1 | 0 | 1 |
| Acadian Flycatcher Empidonax virescens | Cedar Waxwing Bombycilla cedrorum | 1 | 0 | 1 |
| Alder Flycatcher Empidonax alnorum | Mexican Jay Aphelocoma wollweberi | 1 | 1 | 0 |
| Alder Flycatcher Empidonax alnorum | Rufous-tailed Robin Larvivora sibilans | 1 | 0 | 1 |
| Willow Flycatcher Empidonax traillii | Least Flycatcher Empidonax minimus | 1 | 1 | 0 |
| Willow Flycatcher Empidonax traillii | Grey Flycatcher Empidonax wrightii | 1 | 1 | 0 |
| Willow Flycatcher Empidonax traillii | Botteri's Sparrow Peucaea botterii | 1 | 0 | 1 |
| Least Flycatcher Empidonax minimus | Canyon Towhee Melozone fusca | 1 | 0 | 1 |
| Grey Flycatcher Empidonax wrightii | Western Flycatcher Empidonax difficilis | 1 | 0 | 1 |
| Grey Flycatcher Empidonax wrightii | Eurasian Jackdaw Coloeus monedula | 1 | 0 | 1 |
| Grey Flycatcher Empidonax wrightii | Common Crossbill Loxia curvirostra | 1 | 0 | 1 |
| Grey Flycatcher Empidonax wrightii | Golden-winged Warbler Vermivora chrysoptera | 1 | 1 | 0 |
| Dusky Flycatcher Empidonax oberholseri | Siberian Blue Robin Larvivora cyane | 1 | 1 | 0 |
| Pine Flycatcher Empidonax affinis | Western Flycatcher Empidonax difficilis | 1 | 1 | 0 |
| Western Flycatcher Empidonax difficilis | Eastern Phoebe Sayornis phoebe | 1 | 1 | 0 |
| Western Flycatcher Empidonax difficilis | Swainson's Warbler Limnothlypis swainsonii | 1 | 0 | 1 |
| Buff-breasted Flycatcher Empidonax fulvifrons | Cassin's Vireo Vireo cassinii | 1 | 1 | 0 |
| Buff-breasted Flycatcher Empidonax fulvifrons | Olive Warbler Peucedramus taeniatus | 1 | 0 | 1 |
| Buff-breasted Flycatcher Empidonax fulvifrons | Saltmarsh Sparrow Ammospiza caudacuta | 1 | 1 | 0 |
| Black Phoebe Sayornis nigricans | Say's Phoebe Sayornis saya | 1 | 1 | 0 |
| Eastern Phoebe Sayornis phoebe | Say's Phoebe Sayornis saya | 1 | 0 | 1 |
| Eastern Phoebe Sayornis phoebe | Black-crested Titmouse Baeolophus atricristatus | 1 | 0 | 1 |
| Eastern Phoebe Sayornis phoebe | Dark-sided Flycatcher Muscicapa sibirica | 1 | 0 | 1 |
| Say's Phoebe Sayornis saya | Vermilion Flycatcher Pyrocephalus rubinus | 1 | 1 | 0 |
| Say's Phoebe Sayornis saya | Purple Martin Progne subis | 1 | 0 | 1 |
| Vermilion Flycatcher Pyrocephalus rubinus | Ash-throated Flycatcher Myiarchus cinerascens | 1 | 1 | 0 |
| Vermilion Flycatcher Pyrocephalus rubinus | Great Crested Flycatcher Myiarchus crinitus | 1 | 0 | 1 |
| Vermilion Flycatcher Pyrocephalus rubinus | Warbling Vireo Vireo gilvus | 1 | 0 | 1 |
| Ash-throated Flycatcher Myiarchus cinerascens | Nutting's Flycatcher Myiarchus nuttingi | 1 | 0 | 1 |
| Great Crested Flycatcher Myiarchus crinitus | Great Kiskadee Pitangus sulphuratus | 1 | 0 | 1 |
| Great Crested Flycatcher Myiarchus crinitus | Canyon Towhee Melozone fusca | 1 | 1 | 0 |
| Brown-crested Flycatcher Myiarchus tyrannulus | La Sagra's Flycatcher Myiarchus sagrae | 1 | 0 | 1 |
| Great Kiskadee Pitangus sulphuratus | Cassin's Kingbird Tyrannus vociferans | 1 | 1 | 0 |
| Sulphur-bellied Flycatcher Myiodynastes luteiventris | Piratic Flycatcher Legatus leucophaius | 1 | 0 | 1 |
| Sulphur-bellied Flycatcher Myiodynastes luteiventris | Variegated Flycatcher Empidonomus varius | 1 | 0 | 1 |
| Sulphur-bellied Flycatcher Myiodynastes luteiventris | Crowned Slaty Flycatcher Empidonomus aurantioatrocristatus | 1 | 1 | 0 |
| Piratic Flycatcher Legatus leucophaius | Variegated Flycatcher Empidonomus varius | 1 | 0 | 1 |
| Piratic Flycatcher Legatus leucophaius | Red-winged Blackbird Agelaius phoeniceus | 1 | 0 | 1 |
| Variegated Flycatcher Empidonomus varius | Crowned Slaty Flycatcher Empidonomus aurantioatrocristatus | 1 | 1 | 0 |
| Variegated Flycatcher Empidonomus varius | Blue-grey Gnatcatcher Polioptila caerulea | 1 | 1 | 0 |
| Crowned Slaty Flycatcher Empidonomus aurantioatrocristatus | Grey Kingbird Tyrannus dominicensis | 1 | 1 | 0 |
| Tropical Kingbird Tyrannus melancholicus | Cassin's Kingbird Tyrannus vociferans | 1 | 1 | 0 |
| Tropical Kingbird Tyrannus melancholicus | Akiapolaau Hemignathus wilsoni | 1 | 0 | 1 |
| Couch's Kingbird Tyrannus couchii | Thick-billed Kingbird Tyrannus crassirostris | 1 | 1 | 0 |
| Couch's Kingbird Tyrannus couchii | Dickcissel Spiza americana | 1 | 1 | 0 |
| Cassin's Kingbird Tyrannus vociferans | Eastern Kingbird Tyrannus tyrannus | 1 | 1 | 0 |
| Thick-billed Kingbird Tyrannus crassirostris | Eastern Kingbird Tyrannus tyrannus | 1 | 1 | 0 |
| Western Kingbird Tyrannus verticalis | Fork-tailed Flycatcher Tyrannus savana | 1 | 1 | 0 |
| Western Kingbird Tyrannus verticalis | Chihuahuan Meadowlark Sturnella lilianae | 1 | 1 | 0 |
| Western Kingbird Tyrannus verticalis | Bachman's Warbler Vermivora bachmanii | 1 | 1 | 0 |
| Eastern Kingbird Tyrannus tyrannus | Grey Kingbird Tyrannus dominicensis | 1 | 0 | 1 |
| Eastern Kingbird Tyrannus tyrannus | Loggerhead Kingbird Tyrannus caudifasciatus | 1 | 0 | 1 |
| Eastern Kingbird Tyrannus tyrannus | Buff-bellied Pipit Anthus rubescens | 1 | 1 | 0 |
| Eastern Kingbird Tyrannus tyrannus | Black-throated Green Warbler Setophaga virens | 1 | 0 | 1 |
| Grey Kingbird Tyrannus dominicensis | Carolina Chickadee Poecile carolinensis | 1 | 1 | 0 |
| Fork-tailed Flycatcher Tyrannus savana | Black-capped Vireo Vireo atricapilla | 1 | 1 | 0 |
| Fork-tailed Flycatcher Tyrannus savana | Loggerhead Shrike Lanius ludovicianus | 1 | 1 | 0 |
| Fork-tailed Flycatcher Tyrannus savana | Pied Wagtail/White Wagtail Motacilla alba | 1 | 0 | 1 |
| Bell's Vireo Vireo bellii | Hutton's Vireo Vireo huttoni | 1 | 0 | 1 |
| Bell's Vireo Vireo bellii | Yellow-throated Vireo Vireo flavifrons | 1 | 1 | 0 |
| Bell's Vireo Vireo bellii | Asian Brown Flycatcher Muscicapa dauurica | 1 | 1 | 0 |
| Bell's Vireo Vireo bellii | Dark-eyed Junco Junco hyemalis | 1 | 0 | 1 |
| Grey Vireo Vireo vicinior | Hutton's Vireo Vireo huttoni | 1 | 0 | 1 |
| Grey Vireo Vireo vicinior | Canada Jay Perisoreus canadensis | 1 | 1 | 0 |
| Hutton's Vireo Vireo huttoni | Cassin's Vireo Vireo cassinii | 1 | 1 | 0 |
| Hutton's Vireo Vireo huttoni | Ruby-crowned Kinglet Corthylio calendula | 1 | 0 | 1 |
| Yellow-throated Vireo Vireo flavifrons | Cassin's Vireo Vireo cassinii | 1 | 0 | 1 |
| Yellow-throated Vireo Vireo flavifrons | Plumbeous Vireo Vireo plumbeus | 1 | 1 | 0 |
| Cassin's Vireo Vireo cassinii | Palm Warbler Setophaga palmarum | 1 | 1 | 0 |
| Blue-headed Vireo Vireo solitarius | Yucatan Vireo Vireo magister | 1 | 0 | 1 |
| Blue-headed Vireo Vireo solitarius | Brown-headed Nuthatch Sitta pusilla | 1 | 1 | 0 |
| Blue-headed Vireo Vireo solitarius | Grey-crowned Yellowthroat Geothlypis poliocephala | 1 | 1 | 0 |
| Plumbeous Vireo Vireo plumbeus | Philadelphia Vireo Vireo philadelphicus | 1 | 1 | 0 |
| Plumbeous Vireo Vireo plumbeus | Wood Thrush Hylocichla mustelina | 1 | 1 | 0 |
| Plumbeous Vireo Vireo plumbeus | Palila Loxioides bailleui | 1 | 0 | 1 |
| Philadelphia Vireo Vireo philadelphicus | Yellow-green Vireo Vireo flavoviridis | 1 | 1 | 0 |
| Philadelphia Vireo Vireo philadelphicus | Yucatan Vireo Vireo magister | 1 | 0 | 1 |
| Philadelphia Vireo Vireo philadelphicus | Sand Martin Riparia riparia | 1 | 0 | 1 |
| Philadelphia Vireo Vireo philadelphicus | Sedge Wren Cistothorus stellaris | 1 | 1 | 0 |
| Philadelphia Vireo Vireo philadelphicus | Palila Loxioides bailleui | 1 | 0 | 1 |
| Philadelphia Vireo Vireo philadelphicus | Baltimore Oriole Icterus galbula | 1 | 1 | 0 |
| Philadelphia Vireo Vireo philadelphicus | Tropical Parula Setophaga pitiayumi | 1 | 0 | 1 |
| Warbling Vireo Vireo gilvus | Red-eyed Vireo Vireo olivaceus | 1 | 1 | 0 |
| Warbling Vireo Vireo gilvus | Yellow-green Vireo Vireo flavoviridis | 1 | 1 | 0 |
| Warbling Vireo Vireo gilvus | Hawaii Elepaio Chasiempis sandwichensis | 1 | 1 | 0 |
| Red-eyed Vireo Vireo olivaceus | Yellow-green Vireo Vireo flavoviridis | 1 | 1 | 0 |
| Red-eyed Vireo Vireo olivaceus | Black-whiskered Vireo Vireo altiloquus | 1 | 0 | 1 |
| Red-eyed Vireo Vireo olivaceus | Olive Sparrow Arremonops rufivirgatus | 1 | 1 | 0 |
| Red-eyed Vireo Vireo olivaceus | Yellow-eyed Junco Junco phaeonotus | 1 | 1 | 0 |
| Yellow-green Vireo Vireo flavoviridis | Bushtit Psaltriparus minimus | 1 | 1 | 0 |
| Yucatan Vireo Vireo magister | Hawaii Elepaio Chasiempis sandwichensis | 1 | 0 | 1 |
| Yucatan Vireo Vireo magister | Western Red-legged Thrush Turdus plumbeus | 1 | 1 | 0 |
| Hawaii Elepaio Chasiempis sandwichensis | Oahu Elepaio Chasiempis ibidis | 1 | 1 | 0 |
| Kauai Elepaio Chasiempis sclateri | Brown Shrike Lanius cristatus | 1 | 1 | 0 |
| Kauai Elepaio Chasiempis sclateri | Loggerhead Shrike Lanius ludovicianus | 1 | 1 | 0 |
| Kauai Elepaio Chasiempis sclateri | Tennessee Warbler Leiothlypis peregrina | 1 | 1 | 0 |
| Kauai Elepaio Chasiempis sclateri | Chestnut-sided Warbler Setophaga pensylvanica | 1 | 0 | 1 |
| Red-backed Shrike Lanius collurio | Brown Shrike Lanius cristatus | 1 | 1 | 0 |
| Red-backed Shrike Lanius collurio | Loggerhead Shrike Lanius ludovicianus | 1 | 1 | 0 |
| Loggerhead Shrike Lanius ludovicianus | Northern Shrike Lanius borealis | 1 | 1 | 0 |
| Loggerhead Shrike Lanius ludovicianus | Canada Jay Perisoreus canadensis | 1 | 1 | 0 |
| Loggerhead Shrike Lanius ludovicianus | Hawaii Akepa Loxops coccineus | 1 | 1 | 0 |
| Northern Shrike Lanius borealis | White-throated Thrush Turdus assimilis | 1 | 1 | 0 |
| Northern Shrike Lanius borealis | Dark-eyed Junco Junco hyemalis | 1 | 1 | 0 |
| Canada Jay Perisoreus canadensis | Brown Jay Cyanocorax morio | 1 | 0 | 1 |
| Canada Jay Perisoreus canadensis | Green Jay Cyanocorax yncas | 1 | 1 | 0 |
| Brown Jay Cyanocorax morio | Pinyon Jay Gymnorhinus cyanocephalus | 1 | 1 | 0 |
| Green Jay Cyanocorax yncas | Blue Jay Cyanocitta cristata | 1 | 1 | 0 |
| Pinyon Jay Gymnorhinus cyanocephalus | Steller's Jay Cyanocitta stelleri | 1 | 1 | 0 |
| Pinyon Jay Gymnorhinus cyanocephalus | Florida Scrub-Jay Aphelocoma coerulescens | 1 | 1 | 0 |
| Pinyon Jay Gymnorhinus cyanocephalus | Brown-headed Nuthatch Sitta pusilla | 1 | 1 | 0 |
| Pinyon Jay Gymnorhinus cyanocephalus | Black-throated Green Warbler Setophaga virens | 1 | 1 | 0 |
| Steller's Jay Cyanocitta stelleri | Florida Scrub-Jay Aphelocoma coerulescens | 1 | 1 | 0 |
| Blue Jay Cyanocitta cristata | Tufted Titmouse Baeolophus bicolor | 1 | 1 | 0 |
| Blue Jay Cyanocitta cristata | Tree Swallow Tachycineta bicolor | 1 | 1 | 0 |
| Florida Scrub-Jay Aphelocoma coerulescens | Island Scrub-Jay Aphelocoma insularis | 1 | 0 | 1 |
| Woodhouse's Scrub-Jay Aphelocoma woodhouseii | Mexican Jay Aphelocoma wollweberi | 1 | 1 | 0 |
| Woodhouse's Scrub-Jay Aphelocoma woodhouseii | Summer Tanager Piranga rubra | 1 | 0 | 1 |
| Black-billed Magpie Pica hudsonia | Clark's Nutcracker Nucifraga columbiana | 1 | 0 | 1 |
| Clark's Nutcracker Nucifraga columbiana | Chihuahuan Raven Corvus cryptoleucus | 1 | 0 | 1 |
| Eurasian Jackdaw Coloeus monedula | Tamaulipas Crow Corvus imparatus | 1 | 1 | 0 |
| American Crow Corvus brachyrhynchos | Tamaulipas Crow Corvus imparatus | 1 | 0 | 1 |
| American Crow Corvus brachyrhynchos | Chihuahuan Raven Corvus cryptoleucus | 1 | 0 | 1 |
| American Crow Corvus brachyrhynchos | Tree Swallow Tachycineta bicolor | 1 | 0 | 1 |
| American Crow Corvus brachyrhynchos | Cliff Swallow Petrochelidon pyrrhonota | 1 | 1 | 0 |
| American Crow Corvus brachyrhynchos | Lapland Bunting Calcarius lapponicus | 1 | 1 | 0 |
| American Crow Corvus brachyrhynchos | Red-winged Blackbird Agelaius phoeniceus | 1 | 1 | 0 |
| American Crow Corvus brachyrhynchos | Bronzed Cowbird Molothrus aeneus | 1 | 0 | 1 |
| American Crow Corvus brachyrhynchos | Brown-headed Cowbird Molothrus ater | 1 | 0 | 1 |
| Hawaiian Crow Corvus hawaiiensis | Common Raven Corvus corax | 1 | 1 | 0 |
| Hawaiian Crow Corvus hawaiiensis | Sedge Wren Cistothorus stellaris | 1 | 0 | 1 |
| Common Raven Corvus corax | American Goldfinch Spinus tristis | 1 | 1 | 0 |
| Common Raven Corvus corax | Brown-headed Cowbird Molothrus ater | 1 | 0 | 1 |
| Carolina Chickadee Poecile carolinensis | Shore Lark Eremophila alpestris | 1 | 0 | 1 |
| Carolina Chickadee Poecile carolinensis | Purple Martin Progne subis | 1 | 0 | 1 |
| Carolina Chickadee Poecile carolinensis | Lapland Bunting Calcarius lapponicus | 1 | 1 | 0 |
| Carolina Chickadee Poecile carolinensis | Dark-eyed Junco Junco hyemalis | 1 | 0 | 1 |
| Carolina Chickadee Poecile carolinensis | White-crowned Sparrow Zonotrichia leucophrys | 1 | 0 | 1 |
| Carolina Chickadee Poecile carolinensis | Western Meadowlark Sturnella neglecta | 1 | 1 | 0 |
| Carolina Chickadee Poecile carolinensis | Yellow-rumped Warbler Setophaga coronata | 1 | 0 | 1 |
| Black-capped Chickadee Poecile atricapillus | Mountain Chickadee Poecile gambeli | 1 | 1 | 0 |
| Black-capped Chickadee Poecile atricapillus | Boreal Chickadee Poecile hudsonicus | 1 | 1 | 0 |
| Black-capped Chickadee Poecile atricapillus | Hepatic Tanager Piranga flava | 1 | 0 | 1 |
| Mexican Chickadee Poecile sclateri | Chestnut-backed Chickadee Poecile rufescens | 1 | 0 | 1 |
| Boreal Chickadee Poecile hudsonicus | Canyon Towhee Melozone fusca | 1 | 0 | 1 |
| Bridled Titmouse Baeolophus wollweberi | Oak Titmouse Baeolophus inornatus | 1 | 1 | 0 |
| Bridled Titmouse Baeolophus wollweberi | Tufted Titmouse Baeolophus bicolor | 1 | 1 | 0 |
| Juniper Titmouse Baeolophus ridgwayi | Tufted Titmouse Baeolophus bicolor | 1 | 1 | 0 |
| Juniper Titmouse Baeolophus ridgwayi | Black-crested Titmouse Baeolophus atricristatus | 1 | 0 | 1 |
| Juniper Titmouse Baeolophus ridgwayi | Two-barred Crossbill Loxia leucoptera | 1 | 0 | 1 |
| Tufted Titmouse Baeolophus bicolor | Shore Lark Eremophila alpestris | 1 | 0 | 1 |
| Tufted Titmouse Baeolophus bicolor | Tree Swallow Tachycineta bicolor | 1 | 0 | 1 |
| Tufted Titmouse Baeolophus bicolor | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| Tufted Titmouse Baeolophus bicolor | Brewer's Blackbird Euphagus cyanocephalus | 1 | 0 | 1 |
| Tufted Titmouse Baeolophus bicolor | Common Grackle Quiscalus quiscula | 1 | 0 | 1 |
| Verdin Auriparus flaviceps | Shore Lark Eremophila alpestris | 1 | 1 | 0 |
| Verdin Auriparus flaviceps | Lanceolated Warbler Locustella lanceolata | 1 | 1 | 0 |
| Verdin Auriparus flaviceps | Varied Bunting Passerina versicolor | 1 | 0 | 1 |
| Shore Lark Eremophila alpestris | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| Shore Lark Eremophila alpestris | White-crowned Sparrow Zonotrichia leucophrys | 1 | 1 | 0 |
| Shore Lark Eremophila alpestris | Ovenbird Seiurus aurocapilla | 1 | 0 | 1 |
| Shore Lark Eremophila alpestris | Yellow-rumped Warbler Setophaga coronata | 1 | 1 | 0 |
| Eurasian Skylark Alauda arvensis | Thick-billed Warbler Arundinax aedon | 1 | 0 | 1 |
| Eurasian Skylark Alauda arvensis | Millerbird Acrocephalus familiaris | 1 | 0 | 1 |
| Eurasian Skylark Alauda arvensis | Sprague's Pipit Anthus spragueii | 1 | 1 | 0 |
| Pallas's Grasshopper Warbler Helopsaltes certhiola | Middendorff's Grasshopper Warbler Helopsaltes ochotensis | 1 | 1 | 0 |
| Pallas's Grasshopper Warbler Helopsaltes certhiola | Lanceolated Warbler Locustella lanceolata | 1 | 0 | 1 |
| Pallas's Grasshopper Warbler Helopsaltes certhiola | River Warbler Locustella fluviatilis | 1 | 0 | 1 |
| Middendorff's Grasshopper Warbler Helopsaltes ochotensis | Yellow-faced Grassquit Tiaris olivaceus | 1 | 1 | 0 |
| Lanceolated Warbler Locustella lanceolata | Hermit Thrush Catharus guttatus | 1 | 0 | 1 |
| Sand Martin Riparia riparia | Mangrove Swallow Tachycineta albilinea | 1 | 1 | 0 |
| Sand Martin Riparia riparia | Brown-headed Cowbird Molothrus ater | 1 | 1 | 0 |
| Tree Swallow Tachycineta bicolor | Barn Swallow Hirundo rustica | 1 | 1 | 0 |
| Tree Swallow Tachycineta bicolor | Cliff Swallow Petrochelidon pyrrhonota | 1 | 0 | 1 |
| Tree Swallow Tachycineta bicolor | American Goldfinch Spinus tristis | 1 | 0 | 1 |
| Tree Swallow Tachycineta bicolor | Common Grackle Quiscalus quiscula | 1 | 0 | 1 |
| Mangrove Swallow Tachycineta albilinea | Violet-green Swallow Tachycineta thalassina | 1 | 0 | 1 |
| Mangrove Swallow Tachycineta albilinea | Cuban Martin Progne cryptoleuca | 1 | 0 | 1 |
| Mangrove Swallow Tachycineta albilinea | Siberian House Martin Delichon lagopodum | 1 | 0 | 1 |
| Violet-green Swallow Tachycineta thalassina | Bahama Swallow Tachycineta cyaneoviridis | 1 | 0 | 1 |
| Purple Martin Progne subis | Grey-breasted Martin Progne chalybea | 1 | 0 | 1 |
| Purple Martin Progne subis | Cave Swallow Petrochelidon fulva | 1 | 0 | 1 |
| Purple Martin Progne subis | Dark-eyed Junco Junco hyemalis | 1 | 1 | 0 |
| Purple Martin Progne subis | Brown-headed Cowbird Molothrus ater | 1 | 0 | 1 |
| Purple Martin Progne subis | Common Grackle Quiscalus quiscula | 1 | 0 | 1 |
| Cuban Martin Progne cryptoleuca | Brown-chested Martin Progne tapera | 1 | 1 | 0 |
| Grey-breasted Martin Progne chalybea | Southern Martin Progne elegans | 1 | 0 | 1 |
| Grey-breasted Martin Progne chalybea | Northern Rough-winged Swallow Stelgidopteryx serripennis | 1 | 1 | 0 |
| Grey-breasted Martin Progne chalybea | Botteri's Sparrow Peucaea botterii | 1 | 0 | 1 |
| Southern Martin Progne elegans | Northern Rough-winged Swallow Stelgidopteryx serripennis | 1 | 0 | 1 |
| Brown-chested Martin Progne tapera | Cliff Swallow Petrochelidon pyrrhonota | 1 | 1 | 0 |
| Northern Rough-winged Swallow Stelgidopteryx serripennis | Cliff Swallow Petrochelidon pyrrhonota | 1 | 1 | 0 |
| Northern Rough-winged Swallow Stelgidopteryx serripennis | Sprague's Pipit Anthus spragueii | 1 | 0 | 1 |
| Blue-and-white Swallow Pygochelidon cyanoleuca | Barn Swallow Hirundo rustica | 1 | 1 | 0 |
| Barn Swallow Hirundo rustica | American Robin Turdus migratorius | 1 | 1 | 0 |
| Barn Swallow Hirundo rustica | American Goldfinch Spinus tristis | 1 | 0 | 1 |
| Barn Swallow Hirundo rustica | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| Barn Swallow Hirundo rustica | Dark-eyed Junco Junco hyemalis | 1 | 1 | 0 |
| Barn Swallow Hirundo rustica | White-crowned Sparrow Zonotrichia leucophrys | 1 | 1 | 0 |
| Cliff Swallow Petrochelidon pyrrhonota | Western Meadowlark Sturnella neglecta | 1 | 0 | 1 |
| Cave Swallow Petrochelidon fulva | Eastern Yellow Wagtail Motacilla tschutschensis | 1 | 1 | 0 |
| Cave Swallow Petrochelidon fulva | Brown-capped Rosy-Finch Leucosticte australis | 1 | 0 | 1 |
| Yellow-browed Warbler Phylloscopus inornatus | Willow Warbler Phylloscopus trochilus | 1 | 1 | 0 |
| Dusky Warbler Phylloscopus fuscatus | Common Chiffchaff Phylloscopus collybita | 1 | 1 | 0 |
| Dusky Warbler Phylloscopus fuscatus | Wrentit Chamaea fasciata | 1 | 1 | 0 |
| Dusky Warbler Phylloscopus fuscatus | Lucy's Warbler Leiothlypis luciae | 1 | 0 | 1 |
| Arctic Warbler Phylloscopus borealis | Bushtit Psaltriparus minimus | 1 | 0 | 1 |
| Kamchatka Leaf Warbler Phylloscopus examinandus | Tennessee Warbler Leiothlypis peregrina | 1 | 1 | 0 |
| Bushtit Psaltriparus minimus | Wrentit Chamaea fasciata | 1 | 0 | 1 |
| Bushtit Psaltriparus minimus | Orchard Oriole Icterus spurius | 1 | 1 | 0 |
| Wrentit Chamaea fasciata | Ruby-crowned Kinglet Corthylio calendula | 1 | 1 | 0 |
| Wrentit Chamaea fasciata | California Gnatcatcher Polioptila californica | 1 | 0 | 1 |
| Wrentit Chamaea fasciata | Carolina Wren Thryothorus ludovicianus | 1 | 1 | 0 |
| Wrentit Chamaea fasciata | Abert's Towhee Melozone aberti | 1 | 0 | 1 |
| Wrentit Chamaea fasciata | Eastern Meadowlark Sturnella magna | 1 | 1 | 0 |
| Ruby-crowned Kinglet Corthylio calendula | Golden-crowned Kinglet Regulus satrapa | 1 | 0 | 1 |
| Ruby-crowned Kinglet Corthylio calendula | Northern Mockingbird Mimus polyglottos | 1 | 0 | 1 |
| Golden-crowned Kinglet Regulus satrapa | Brown-headed Nuthatch Sitta pusilla | 1 | 0 | 1 |
| White-breasted Nuthatch Sitta carolinensis | Pygmy Nuthatch Sitta pygmaea | 1 | 1 | 0 |
| Pygmy Nuthatch Sitta pygmaea | Brown-headed Nuthatch Sitta pusilla | 1 | 1 | 0 |
| Pygmy Nuthatch Sitta pygmaea | Red-breasted Nuthatch Sitta canadensis | 1 | 0 | 1 |
| Pygmy Nuthatch Sitta pygmaea | Arctic Redpoll Acanthis hornemanni | 1 | 0 | 1 |
| Brown-headed Nuthatch Sitta pusilla | Blue-grey Gnatcatcher Polioptila caerulea | 1 | 1 | 0 |
| Red-breasted Nuthatch Sitta canadensis | Blue-grey Gnatcatcher Polioptila caerulea | 1 | 1 | 0 |
| Red-breasted Nuthatch Sitta canadensis | Nelson's Sparrow Ammospiza nelsoni | 1 | 1 | 0 |
| Black-tailed Gnatcatcher Polioptila melanura | Lucy's Warbler Leiothlypis luciae | 1 | 0 | 1 |
| Black-tailed Gnatcatcher Polioptila melanura | Chestnut-sided Warbler Setophaga pensylvanica | 1 | 1 | 0 |
| California Gnatcatcher Polioptila californica | Black-capped Gnatcatcher Polioptila nigriceps | 1 | 1 | 0 |
| Northern House Wren Troglodytes aedon | Marsh Wren Cistothorus palustris | 1 | 1 | 0 |
| Northern House Wren Troglodytes aedon | Field Sparrow Spizella pusilla | 1 | 1 | 0 |
| Pacific Wren Troglodytes pacificus | Marsh Wren Cistothorus palustris | 1 | 1 | 0 |
| Pacific Wren Troglodytes pacificus | Painted Redstart Myioborus pictus | 1 | 0 | 1 |
| Winter Wren Troglodytes hiemalis | Carolina Wren Thryothorus ludovicianus | 1 | 0 | 1 |
| Winter Wren Troglodytes hiemalis | Brown-capped Rosy-Finch Leucosticte australis | 1 | 0 | 1 |
| Winter Wren Troglodytes hiemalis | Common Crossbill Loxia curvirostra | 1 | 0 | 1 |
| Sedge Wren Cistothorus stellaris | Marsh Wren Cistothorus palustris | 1 | 1 | 0 |
| Sedge Wren Cistothorus stellaris | Carolina Wren Thryothorus ludovicianus | 1 | 1 | 0 |
| Sedge Wren Cistothorus stellaris | Bewick's Wren Thryomanes bewickii | 1 | 1 | 0 |
| Marsh Wren Cistothorus palustris | Bewick's Wren Thryomanes bewickii | 1 | 1 | 0 |
| Marsh Wren Cistothorus palustris | Cactus Wren Campylorhynchus brunneicapillus | 1 | 1 | 0 |
| Marsh Wren Cistothorus palustris | Grey Silky-flycatcher Ptiliogonys cinereus | 1 | 0 | 1 |
| Carolina Wren Thryothorus ludovicianus | House Finch Haemorhous mexicanus | 1 | 0 | 1 |
| Carolina Wren Thryothorus ludovicianus | Eurasian Siskin Spinus spinus | 1 | 0 | 1 |
| Bewick's Wren Thryomanes bewickii | Sinaloa Wren Thryophilus sinaloa | 1 | 0 | 1 |
| Cactus Wren Campylorhynchus brunneicapillus | Cassin's Sparrow Peucaea cassinii | 1 | 1 | 0 |
| American Dipper Cinclus mexicanus | Black Catbird Melanoptila glabrirostris | 1 | 0 | 1 |
| Grey Catbird Dumetella carolinensis | Chestnut-sided Warbler Setophaga pensylvanica | 1 | 1 | 0 |
| Curve-billed Thrasher Toxostoma curvirostre | Long-billed Thrasher Toxostoma longirostre | 1 | 0 | 1 |
| Curve-billed Thrasher Toxostoma curvirostre | Bendire's Thrasher Toxostoma bendirei | 1 | 1 | 0 |
| Brown Thrasher Toxostoma rufum | Bendire's Thrasher Toxostoma bendirei | 1 | 0 | 1 |
| Brown Thrasher Toxostoma rufum | Asian Brown Flycatcher Muscicapa dauurica | 1 | 0 | 1 |
| Long-billed Thrasher Toxostoma longirostre | California Thrasher Toxostoma redivivum | 1 | 1 | 0 |
| California Thrasher Toxostoma redivivum | LeConte's Thrasher Toxostoma lecontei | 1 | 0 | 1 |
| California Thrasher Toxostoma redivivum | Crissal Thrasher Toxostoma crissale | 1 | 0 | 1 |
| California Thrasher Toxostoma redivivum | Sage Thrasher Oreoscoptes montanus | 1 | 1 | 0 |
| California Thrasher Toxostoma redivivum | Olomao Myadestes lanaiensis | 1 | 1 | 0 |
| LeConte's Thrasher Toxostoma lecontei | Sage Thrasher Oreoscoptes montanus | 1 | 0 | 1 |
| Crissal Thrasher Toxostoma crissale | Sage Thrasher Oreoscoptes montanus | 1 | 1 | 0 |
| Crissal Thrasher Toxostoma crissale | Northern Parula Setophaga americana | 1 | 1 | 0 |
| Sage Thrasher Oreoscoptes montanus | Bachman's Sparrow Peucaea aestivalis | 1 | 1 | 0 |
| Sage Thrasher Oreoscoptes montanus | Orchard Oriole Icterus spurius | 1 | 0 | 1 |
| Sage Thrasher Oreoscoptes montanus | Pine Warbler Setophaga pinus | 1 | 0 | 1 |
| Tropical Mockingbird Mimus gilvus | Northern Mockingbird Mimus polyglottos | 1 | 1 | 0 |
| Tropical Mockingbird Mimus gilvus | Bachman's Sparrow Peucaea aestivalis | 1 | 0 | 1 |
| Eastern Bluebird Sialia sialis | Lucy's Warbler Leiothlypis luciae | 1 | 0 | 1 |
| Western Bluebird Sialia mexicana | Mountain Bluebird Sialia currucoides | 1 | 1 | 0 |
| Western Bluebird Sialia mexicana | Townsend's Solitaire Myadestes townsendi | 1 | 1 | 0 |
| Western Bluebird Sialia mexicana | Palila Loxioides bailleui | 1 | 0 | 1 |
| Mountain Bluebird Sialia currucoides | Puaiohi Myadestes palmeri | 1 | 0 | 1 |
| Kamao Myadestes myadestinus | Olomao Myadestes lanaiensis | 1 | 0 | 1 |
| Olomao Myadestes lanaiensis | Puaiohi Myadestes palmeri | 1 | 1 | 0 |
| Olomao Myadestes lanaiensis | Bicknell's Thrush Catharus bicknelli | 1 | 1 | 0 |
| Omao Myadestes obscurus | Puaiohi Myadestes palmeri | 1 | 0 | 1 |
| Omao Myadestes obscurus | Asian Brown Flycatcher Muscicapa dauurica | 1 | 1 | 0 |
| Omao Myadestes obscurus | Cape May Warbler Setophaga tigrina | 1 | 1 | 0 |
| Puaiohi Myadestes palmeri | Orange-billed Nightingale-Thrush Catharus aurantiirostris | 1 | 1 | 0 |
| Varied Thrush Ixoreus naevius | Kirtland's Warbler Setophaga kirtlandii | 1 | 0 | 1 |
| Veery Catharus fuscescens | Clay-coloured Sparrow Spizella pallida | 1 | 1 | 0 |
| Grey-cheeked Thrush Catharus minimus | Song Sparrow Melospiza melodia | 1 | 1 | 0 |
| Swainson's Thrush Catharus ustulatus | Hermit Thrush Catharus guttatus | 1 | 0 | 1 |
| Hermit Thrush Catharus guttatus | Redwing Turdus iliacus | 1 | 0 | 1 |
| Hermit Thrush Catharus guttatus | Fieldfare Turdus pilaris | 1 | 0 | 1 |
| Hermit Thrush Catharus guttatus | Abert's Towhee Melozone aberti | 1 | 1 | 0 |
| Wood Thrush Hylocichla mustelina | Aztec Thrush Ridgwayia pinicola | 1 | 0 | 1 |
| Wood Thrush Hylocichla mustelina | White-throated Thrush Turdus assimilis | 1 | 1 | 0 |
| Song Thrush Turdus philomelos | Clay-coloured Thrush Turdus grayi | 1 | 1 | 0 |
| Redwing Turdus iliacus | White-throated Thrush Turdus assimilis | 1 | 1 | 0 |
| Redwing Turdus iliacus | Fieldfare Turdus pilaris | 1 | 1 | 0 |
| Redwing Turdus iliacus | Dusky Thrush Turdus eunomus | 1 | 1 | 0 |
| White-throated Thrush Turdus assimilis | Fieldfare Turdus pilaris | 1 | 1 | 0 |
| White-throated Thrush Turdus assimilis | Seaside Sparrow Ammospiza maritima | 1 | 0 | 1 |
| Clay-coloured Thrush Turdus grayi | Rufous-backed Robin Turdus rufopalliatus | 1 | 1 | 0 |
| American Robin Turdus migratorius | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| American Robin Turdus migratorius | Brown-headed Cowbird Molothrus ater | 1 | 1 | 0 |
| American Robin Turdus migratorius | Brewer's Blackbird Euphagus cyanocephalus | 1 | 0 | 1 |
| Western Red-legged Thrush Turdus plumbeus | Fieldfare Turdus pilaris | 1 | 1 | 0 |
| Eyebrowed Thrush Turdus obscurus | Dusky Thrush Turdus eunomus | 1 | 1 | 0 |
| Fieldfare Turdus pilaris | Nihoa Finch Telespiza ultima | 1 | 1 | 0 |
| Grey-streaked Flycatcher Muscicapa griseisticta | Dark-sided Flycatcher Muscicapa sibirica | 1 | 0 | 1 |
| Grey-streaked Flycatcher Muscicapa griseisticta | Mourning Warbler Geothlypis philadelphia | 1 | 1 | 0 |
| Dark-sided Flycatcher Muscicapa sibirica | Rufous-tailed Robin Larvivora sibilans | 1 | 1 | 0 |
| Asian Brown Flycatcher Muscicapa dauurica | Siberian Blue Robin Larvivora cyane | 1 | 0 | 1 |
| Asian Brown Flycatcher Muscicapa dauurica | Red-flanked Bluetail Tarsiger cyanurus | 1 | 0 | 1 |
| European Robin Erithacus rubecula | Rufous-tailed Robin Larvivora sibilans | 1 | 0 | 1 |
| Siberian Blue Robin Larvivora cyane | Golden-crowned Sparrow Zonotrichia atricapilla | 1 | 1 | 0 |
| Bluethroat Luscinia svecica | Siberian Rubythroat Calliope calliope | 1 | 1 | 0 |
| Siberian Rubythroat Calliope calliope | Narcissus Flycatcher Ficedula narcissina | 1 | 0 | 1 |
| Red-flanked Bluetail Tarsiger cyanurus | Taiga Flycatcher Ficedula albicilla | 1 | 1 | 0 |
| Red-flanked Bluetail Tarsiger cyanurus | Northern Wheatear Oenanthe oenanthe | 1 | 1 | 0 |
| Red-flanked Bluetail Tarsiger cyanurus | Cedar Waxwing Bombycilla cedrorum | 1 | 1 | 0 |
| Narcissus Flycatcher Ficedula narcissina | Mugimaki Flycatcher Ficedula mugimaki | 1 | 0 | 1 |
| Common Redstart Phoenicurus phoenicurus | Blue Rock Thrush Monticola solitarius | 1 | 1 | 0 |
| Common Rock Thrush Monticola saxatilis | Northern Wheatear Oenanthe oenanthe | 1 | 1 | 0 |
| Blue Rock Thrush Monticola solitarius | Northern Wheatear Oenanthe oenanthe | 1 | 1 | 0 |
| Amur Stonechat Saxicola stejnegeri | Bohemian Waxwing Bombycilla garrulus | 1 | 1 | 0 |
| Bohemian Waxwing Bombycilla garrulus | Grey Silky-flycatcher Ptiliogonys cinereus | 1 | 1 | 0 |
| Cedar Waxwing Bombycilla cedrorum | Grey Silky-flycatcher Ptiliogonys cinereus | 1 | 0 | 1 |
| Cedar Waxwing Bombycilla cedrorum | Pine Grosbeak Pinicola enucleator | 1 | 1 | 0 |
| Cedar Waxwing Bombycilla cedrorum | Arctic Redpoll Acanthis hornemanni | 1 | 0 | 1 |
| Kauai Oo Moho braccatus | Buff-bellied Pipit Anthus rubescens | 1 | 0 | 1 |
| Grey Silky-flycatcher Ptiliogonys cinereus | Eastern Yellow Wagtail Motacilla tschutschensis | 1 | 1 | 0 |
| Grey Silky-flycatcher Ptiliogonys cinereus | Buff-bellied Pipit Anthus rubescens | 1 | 0 | 1 |
| Grey Silky-flycatcher Ptiliogonys cinereus | Sprague's Pipit Anthus spragueii | 1 | 0 | 1 |
| Phainopepla Phainopepla nitens | Buff-bellied Pipit Anthus rubescens | 1 | 1 | 0 |
| Phainopepla Phainopepla nitens | Sprague's Pipit Anthus spragueii | 1 | 0 | 1 |
| Phainopepla Phainopepla nitens | Townsend's Warbler Setophaga townsendi | 1 | 1 | 0 |
| Olive Warbler Peucedramus taeniatus | White-crowned Sparrow Zonotrichia leucophrys | 1 | 0 | 1 |
| Olive Warbler Peucedramus taeniatus | Eastern Meadowlark Sturnella magna | 1 | 0 | 1 |
| Grey Wagtail Motacilla cinerea | Citrine Wagtail Motacilla citreola | 1 | 1 | 0 |
| Tree Pipit Anthus trivialis | Olive-backed Pipit Anthus hodgsoni | 1 | 1 | 0 |
| Pechora Pipit Anthus gustavi | Red-throated Pipit Anthus cervinus | 1 | 1 | 0 |
| Pechora Pipit Anthus gustavi | Song Sparrow Melospiza melodia | 1 | 0 | 1 |
| Red-throated Pipit Anthus cervinus | Buff-bellied Pipit Anthus rubescens | 1 | 1 | 0 |
| Evening Grosbeak Hesperiphona vespertina | Hawfinch Coccothraustes coccothraustes | 1 | 0 | 1 |
| Hawfinch Coccothraustes coccothraustes | Akikiki Oreomystis bairdi | 1 | 0 | 1 |
| Hawfinch Coccothraustes coccothraustes | Common Rosefinch Carpodacus erythrinus | 1 | 1 | 0 |
| Hawfinch Coccothraustes coccothraustes | Green-tailed Towhee Pipilo chlorurus | 1 | 0 | 1 |
| Akikiki Oreomystis bairdi | Palila Loxioides bailleui | 1 | 1 | 0 |
| Akikiki Oreomystis bairdi | Bay-breasted Warbler Setophaga castanea | 1 | 1 | 0 |
| Maui Alauahio Paroreomyza montana | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| Maui Alauahio Paroreomyza montana | Western Spindalis Spindalis zena | 1 | 1 | 0 |
| Maui Alauahio Paroreomyza montana | MacGillivray's Warbler Geothlypis tolmiei | 1 | 1 | 0 |
| Palila Loxioides bailleui | Akohekohe Palmeria dolei | 1 | 1 | 0 |
| Laysan Finch Telespiza cantans | Akohekohe Palmeria dolei | 1 | 1 | 0 |
| Nihoa Finch Telespiza ultima | Apapane Himatione sanguinea | 1 | 0 | 1 |
| Nihoa Finch Telespiza ultima | Ou Psittirostra psittacea | 1 | 0 | 1 |
| Nihoa Finch Telespiza ultima | Lawrence's Goldfinch Spinus lawrencei | 1 | 0 | 1 |
| Apapane Himatione sanguinea | Ou Psittirostra psittacea | 1 | 1 | 0 |
| Ou Psittirostra psittacea | Maui Parrotbill Pseudonestor xanthophrys | 1 | 1 | 0 |
| Akiapolaau Hemignathus wilsoni | Hawaii Amakihi Chlorodrepanis virens | 1 | 1 | 0 |
| Akiapolaau Hemignathus wilsoni | Oahu Amakihi Chlorodrepanis flava | 1 | 0 | 1 |
| Akiapolaau Hemignathus wilsoni | Akekee Loxops caeruleirostris | 1 | 0 | 1 |
| Anianiau Magumma parva | Hawaii Amakihi Chlorodrepanis virens | 1 | 1 | 0 |
| Anianiau Magumma parva | Oahu Amakihi Chlorodrepanis flava | 1 | 1 | 0 |
| Anianiau Magumma parva | Hawaii Creeper Loxops mana | 1 | 1 | 0 |
| Anianiau Magumma parva | Eastern Meadowlark Sturnella magna | 1 | 1 | 0 |
| Hawaii Amakihi Chlorodrepanis virens | Kauai Amakihi Chlorodrepanis stejnegeri | 1 | 0 | 1 |
| Hawaii Amakihi Chlorodrepanis virens | Hawaii Creeper Loxops mana | 1 | 0 | 1 |
| Oahu Amakihi Chlorodrepanis flava | Akekee Loxops caeruleirostris | 1 | 1 | 0 |
| Kauai Amakihi Chlorodrepanis stejnegeri | Hawaii Creeper Loxops mana | 1 | 0 | 1 |
| Kauai Amakihi Chlorodrepanis stejnegeri | Akekee Loxops caeruleirostris | 1 | 0 | 1 |
| Kauai Amakihi Chlorodrepanis stejnegeri | Cassin's Sparrow Peucaea cassinii | 1 | 0 | 1 |
| Kauai Amakihi Chlorodrepanis stejnegeri | Hermit Warbler Setophaga occidentalis | 1 | 1 | 0 |
| Hawaii Creeper Loxops mana | Hawaii Akepa Loxops coccineus | 1 | 1 | 0 |
| Hawaii Creeper Loxops mana | Maui Akepa Loxops ochraceus | 1 | 1 | 0 |
| Hawaii Creeper Loxops mana | Grey-crowned Rosy-Finch Leucosticte tephrocotis | 1 | 0 | 1 |
| Akekee Loxops caeruleirostris | Hawaii Akepa Loxops coccineus | 1 | 1 | 0 |
| Akekee Loxops caeruleirostris | Maui Akepa Loxops ochraceus | 1 | 1 | 0 |
| Akekee Loxops caeruleirostris | Common Rosefinch Carpodacus erythrinus | 1 | 1 | 0 |
| Hawaii Akepa Loxops coccineus | Pine Grosbeak Pinicola enucleator | 1 | 1 | 0 |
| Hawaii Akepa Loxops coccineus | Cerulean Warbler Setophaga cerulea | 1 | 1 | 0 |
| Maui Akepa Loxops ochraceus | Common Rosefinch Carpodacus erythrinus | 1 | 1 | 0 |
| Common Rosefinch Carpodacus erythrinus | Grey-crowned Rosy-Finch Leucosticte tephrocotis | 1 | 1 | 0 |
| Common Rosefinch Carpodacus erythrinus | Purple Finch Haemorhous purpureus | 1 | 1 | 0 |
| Common Rosefinch Carpodacus erythrinus | Rose-breasted Grosbeak Pheucticus ludovicianus | 1 | 1 | 0 |
| Pine Grosbeak Pinicola enucleator | Sagebrush Sparrow Artemisiospiza nevadensis | 1 | 0 | 1 |
| Eurasian Bullfinch Pyrrhula pyrrhula | Grey-crowned Rosy-Finch Leucosticte tephrocotis | 1 | 0 | 1 |
| Asian Rosy-Finch Leucosticte arctoa | Grey-crowned Rosy-Finch Leucosticte tephrocotis | 1 | 0 | 1 |
| Brown-capped Rosy-Finch Leucosticte australis | House Finch Haemorhous mexicanus | 1 | 0 | 1 |
| House Finch Haemorhous mexicanus | Purple Finch Haemorhous purpureus | 1 | 0 | 1 |
| Cassin's Finch Haemorhous cassinii | Oriental Greenfinch Chloris sinica | 1 | 0 | 1 |
| Cassin's Finch Haemorhous cassinii | LeConte's Sparrow Ammospiza leconteii | 1 | 1 | 0 |
| Cassin's Finch Haemorhous cassinii | Green-tailed Towhee Pipilo chlorurus | 1 | 0 | 1 |
| Cassin's Finch Haemorhous cassinii | Grace's Warbler Setophaga graciae | 1 | 0 | 1 |
| Oriental Greenfinch Chloris sinica | Common Redpoll Acanthis flammea | 1 | 1 | 0 |
| Oriental Greenfinch Chloris sinica | Arctic Redpoll Acanthis hornemanni | 1 | 0 | 1 |
| Common Crossbill Loxia curvirostra | Yellow-throated Warbler Setophaga dominica | 1 | 1 | 0 |
| Cassia Crossbill Loxia sinesciuris | Two-barred Crossbill Loxia leucoptera | 1 | 1 | 0 |
| Eurasian Siskin Spinus spinus | Pine Siskin Spinus pinus | 1 | 1 | 0 |
| Pine Siskin Spinus pinus | American Goldfinch Spinus tristis | 1 | 1 | 0 |
| Pine Siskin Spinus pinus | Bell's Sparrow Artemisiospiza belli | 1 | 1 | 0 |
| Lesser Goldfinch Spinus psaltria | Lawrence's Goldfinch Spinus lawrencei | 1 | 1 | 0 |
| American Goldfinch Spinus tristis | Western Meadowlark Sturnella neglecta | 1 | 0 | 1 |
| Lapland Bunting Calcarius lapponicus | Chestnut-collared Longspur Calcarius ornatus | 1 | 0 | 1 |
| Lapland Bunting Calcarius lapponicus | Swainson's Warbler Limnothlypis swainsonii | 1 | 0 | 1 |
| Lapland Bunting Calcarius lapponicus | Northern Cardinal Cardinalis cardinalis | 1 | 0 | 1 |
| Chestnut-collared Longspur Calcarius ornatus | Smith's Longspur Calcarius pictus | 1 | 1 | 0 |
| Chestnut-collared Longspur Calcarius ornatus | Thick-billed Longspur Rhynchophanes mccownii | 1 | 1 | 0 |
| Smith's Longspur Calcarius pictus | Rufous-winged Sparrow Peucaea carpalis | 1 | 1 | 0 |
| Smith's Longspur Calcarius pictus | Vesper Sparrow Pooecetes gramineus | 1 | 1 | 0 |
| Thick-billed Longspur Rhynchophanes mccownii | Cassin's Sparrow Peucaea cassinii | 1 | 1 | 0 |
| Snow Bunting Plectrophenax nivalis | McKay's Bunting Plectrophenax hyperboreus | 1 | 0 | 1 |
| Pallas's Reed Bunting Emberiza pallasi | Common Reed Bunting Emberiza schoeniclus | 1 | 1 | 0 |
| Pallas's Reed Bunting Emberiza pallasi | Song Sparrow Melospiza melodia | 1 | 1 | 0 |
| Common Reed Bunting Emberiza schoeniclus | Vesper Sparrow Pooecetes gramineus | 1 | 0 | 1 |
| Common Reed Bunting Emberiza schoeniclus | Seaside Sparrow Ammospiza maritima | 1 | 0 | 1 |
| Little Bunting Emberiza pusilla | Rustic Bunting Emberiza rustica | 1 | 0 | 1 |
| Rustic Bunting Emberiza rustica | Rufous-winged Sparrow Peucaea carpalis | 1 | 1 | 0 |
| Yellow-browed Bunting Emberiza chrysophrys | Grey Bunting Emberiza variabilis | 1 | 0 | 1 |
| Yellow-browed Bunting Emberiza chrysophrys | Botteri's Sparrow Peucaea botterii | 1 | 1 | 0 |
| Rufous-winged Sparrow Peucaea carpalis | Cassin's Sparrow Peucaea cassinii | 1 | 0 | 1 |
| Rufous-winged Sparrow Peucaea carpalis | Grasshopper Sparrow Ammodramus savannarum | 1 | 0 | 1 |
| Rufous-winged Sparrow Peucaea carpalis | Chipping Sparrow Spizella passerina | 1 | 1 | 0 |
| Rufous-winged Sparrow Peucaea carpalis | Worthen's Sparrow Spizella wortheni | 1 | 0 | 1 |
| Botteri's Sparrow Peucaea botterii | Cassin's Sparrow Peucaea cassinii | 1 | 0 | 1 |
| Botteri's Sparrow Peucaea botterii | Bachman's Sparrow Peucaea aestivalis | 1 | 0 | 1 |
| Botteri's Sparrow Peucaea botterii | Olive Sparrow Arremonops rufivirgatus | 1 | 1 | 0 |
| Botteri's Sparrow Peucaea botterii | Baird's Sparrow Centronyx bairdii | 1 | 0 | 1 |
| Botteri's Sparrow Peucaea botterii | Dickcissel Spiza americana | 1 | 0 | 1 |
| Bachman's Sparrow Peucaea aestivalis | Chipping Sparrow Spizella passerina | 1 | 1 | 0 |
| Grasshopper Sparrow Ammodramus savannarum | Clay-coloured Sparrow Spizella pallida | 1 | 1 | 0 |
| Grasshopper Sparrow Ammodramus savannarum | Morelet's Seedeater Sporophila morelleti | 1 | 0 | 1 |
| Olive Sparrow Arremonops rufivirgatus | Clay-coloured Sparrow Spizella pallida | 1 | 1 | 0 |
| Chipping Sparrow Spizella passerina | Field Sparrow Spizella pusilla | 1 | 1 | 0 |
| Chipping Sparrow Spizella passerina | Vesper Sparrow Pooecetes gramineus | 1 | 0 | 1 |
| Black-chinned Sparrow Spizella atrogularis | Yellow-headed Blackbird Xanthocephalus xanthocephalus | 1 | 0 | 1 |
| Field Sparrow Spizella pusilla | Lark Sparrow Chondestes grammacus | 1 | 0 | 1 |
| Field Sparrow Spizella pusilla | Saltmarsh Sparrow Ammospiza caudacuta | 1 | 0 | 1 |
| Brewer's Sparrow Spizella breweri | Worthen's Sparrow Spizella wortheni | 1 | 0 | 1 |
| Brewer's Sparrow Spizella breweri | Lark Sparrow Chondestes grammacus | 1 | 1 | 0 |
| Five-striped Sparrow Amphispizopsis quinquestriata | Black-throated Sparrow Amphispiza bilineata | 1 | 1 | 0 |
| Black-throated Sparrow Amphispiza bilineata | Sagebrush Sparrow Artemisiospiza nevadensis | 1 | 0 | 1 |
| Lark Sparrow Chondestes grammacus | Lark Bunting Calamospiza melanocorys | 1 | 0 | 1 |
| Lark Sparrow Chondestes grammacus | American Tree Sparrow Spizelloides arborea | 1 | 1 | 0 |
| American Tree Sparrow Spizelloides arborea | Fox Sparrow Passerella iliaca | 1 | 0 | 1 |
| Dark-eyed Junco Junco hyemalis | Yellow-eyed Junco Junco phaeonotus | 1 | 1 | 0 |
| Dark-eyed Junco Junco hyemalis | Red-winged Blackbird Agelaius phoeniceus | 1 | 0 | 1 |
| Yellow-eyed Junco Junco phaeonotus | Harris's Sparrow Zonotrichia querula | 1 | 1 | 0 |
| White-crowned Sparrow Zonotrichia leucophrys | Red-winged Blackbird Agelaius phoeniceus | 1 | 1 | 0 |
| Golden-crowned Sparrow Zonotrichia atricapilla | Sagebrush Sparrow Artemisiospiza nevadensis | 1 | 1 | 0 |
| Golden-crowned Sparrow Zonotrichia atricapilla | Bronzed Cowbird Molothrus aeneus | 1 | 1 | 0 |
| Harris's Sparrow Zonotrichia querula | Sagebrush Sparrow Artemisiospiza nevadensis | 1 | 1 | 0 |
| White-throated Sparrow Zonotrichia albicollis | Sagebrush Sparrow Artemisiospiza nevadensis | 1 | 1 | 0 |
| Bell's Sparrow Artemisiospiza belli | Vesper Sparrow Pooecetes gramineus | 1 | 1 | 0 |
| Bell's Sparrow Artemisiospiza belli | Seaside Sparrow Ammospiza maritima | 1 | 1 | 0 |
| Striped Sparrow Oriturus superciliosus | LeConte's Sparrow Ammospiza leconteii | 1 | 1 | 0 |
| Saltmarsh Sparrow Ammospiza caudacuta | Savannah Sparrow Passerculus sandwichensis | 1 | 0 | 1 |
| Savannah Sparrow Passerculus sandwichensis | Baird's Sparrow Centronyx bairdii | 1 | 0 | 1 |
| Savannah Sparrow Passerculus sandwichensis | Henslow's Sparrow Centronyx henslowii | 1 | 0 | 1 |
| Baird's Sparrow Centronyx bairdii | Henslow's Sparrow Centronyx henslowii | 1 | 1 | 0 |
| Henslow's Sparrow Centronyx henslowii | Dickcissel Spiza americana | 1 | 1 | 0 |
| Song Sparrow Melospiza melodia | Lincoln's Sparrow Melospiza lincolnii | 1 | 1 | 0 |
| Lincoln's Sparrow Melospiza lincolnii | Canyon Towhee Melozone fusca | 1 | 0 | 1 |
| Abert's Towhee Melozone aberti | Green-tailed Towhee Pipilo chlorurus | 1 | 0 | 1 |
| Rufous-crowned Sparrow Aimophila ruficeps | Green-tailed Towhee Pipilo chlorurus | 1 | 0 | 1 |
| Rufous-crowned Sparrow Aimophila ruficeps | Spotted Towhee Pipilo maculatus | 1 | 1 | 0 |
| Spotted Towhee Pipilo maculatus | Eastern Towhee Pipilo erythrophthalmus | 1 | 0 | 1 |
| Spotted Towhee Pipilo maculatus | Black-faced Grassquit Melanospiza bicolor | 1 | 1 | 0 |
| Eastern Towhee Pipilo erythrophthalmus | Tennessee Warbler Leiothlypis peregrina | 1 | 1 | 0 |
| Western Spindalis Spindalis zena | Yellow-breasted Chat Icteria virens | 1 | 1 | 0 |
| Yellow-breasted Chat Icteria virens | Western Meadowlark Sturnella neglecta | 1 | 1 | 0 |
| Yellow-headed Blackbird Xanthocephalus xanthocephalus | Red-winged Blackbird Agelaius phoeniceus | 1 | 1 | 0 |
| Western Meadowlark Sturnella neglecta | Brown-headed Cowbird Molothrus ater | 1 | 1 | 0 |
| Chihuahuan Meadowlark Sturnella lilianae | Black-vented Oriole Icterus wagleri | 1 | 1 | 0 |
| Orchard Oriole Icterus spurius | Hooded Oriole Icterus cucullatus | 1 | 1 | 0 |
| Hooded Oriole Icterus cucullatus | Bullock's Oriole Icterus bullockii | 1 | 0 | 1 |
| Hooded Oriole Icterus cucullatus | Altamira Oriole Icterus gularis | 1 | 1 | 0 |
| Hooded Oriole Icterus cucullatus | Audubon's Oriole Icterus graduacauda | 1 | 0 | 1 |
| Streak-backed Oriole Icterus pustulatus | Bullock's Oriole Icterus bullockii | 1 | 0 | 1 |
| Streak-backed Oriole Icterus pustulatus | Altamira Oriole Icterus gularis | 1 | 0 | 1 |
| Bullock's Oriole Icterus bullockii | Baltimore Oriole Icterus galbula | 1 | 0 | 1 |
| Scott's Oriole Icterus parisorum | Mourning Warbler Geothlypis philadelphia | 1 | 0 | 1 |
| Red-winged Blackbird Agelaius phoeniceus | Tawny-shouldered Blackbird Agelaius humeralis | 1 | 0 | 1 |
| Red-winged Blackbird Agelaius phoeniceus | Bronzed Cowbird Molothrus aeneus | 1 | 1 | 0 |
| Red-winged Blackbird Agelaius phoeniceus | Common Grackle Quiscalus quiscula | 1 | 0 | 1 |
| Red-winged Blackbird Agelaius phoeniceus | Yellow-rumped Warbler Setophaga coronata | 1 | 1 | 0 |
| Tricoloured Blackbird Agelaius tricolor | Kirtland's Warbler Setophaga kirtlandii | 1 | 0 | 1 |
| Tricoloured Blackbird Agelaius tricolor | Cape May Warbler Setophaga tigrina | 1 | 0 | 1 |
| Tricoloured Blackbird Agelaius tricolor | Blackburnian Warbler Setophaga fusca | 1 | 0 | 1 |
| Tawny-shouldered Blackbird Agelaius humeralis | Blue Grosbeak Passerina caerulea | 1 | 0 | 1 |
| Bronzed Cowbird Molothrus aeneus | Rusty Blackbird Euphagus carolinus | 1 | 0 | 1 |
| Rusty Blackbird Euphagus carolinus | Boat-tailed Grackle Quiscalus major | 1 | 1 | 0 |
| Brewer's Blackbird Euphagus cyanocephalus | Boat-tailed Grackle Quiscalus major | 1 | 1 | 0 |
| Brewer's Blackbird Euphagus cyanocephalus | Yellow-rumped Warbler Setophaga coronata | 1 | 0 | 1 |
| Common Grackle Quiscalus quiscula | Boat-tailed Grackle Quiscalus major | 1 | 0 | 1 |
| Common Grackle Quiscalus quiscula | Great-tailed Grackle Quiscalus mexicanus | 1 | 0 | 1 |
| Common Grackle Quiscalus quiscula | Yellow-rumped Warbler Setophaga coronata | 1 | 0 | 1 |
| Ovenbird Seiurus aurocapilla | Worm-eating Warbler Helmitheros vermivorum | 1 | 0 | 1 |
| Ovenbird Seiurus aurocapilla | Louisiana Waterthrush Parkesia motacilla | 1 | 0 | 1 |
| Ovenbird Seiurus aurocapilla | Golden-winged Warbler Vermivora chrysoptera | 1 | 1 | 0 |
| Worm-eating Warbler Helmitheros vermivorum | Louisiana Waterthrush Parkesia motacilla | 1 | 0 | 1 |
| Worm-eating Warbler Helmitheros vermivorum | Northern Waterthrush Parkesia noveboracensis | 1 | 0 | 1 |
| Worm-eating Warbler Helmitheros vermivorum | American Redstart Setophaga ruticilla | 1 | 0 | 1 |
| Bachman's Warbler Vermivora bachmanii | Golden-winged Warbler Vermivora chrysoptera | 1 | 1 | 0 |
| Golden-winged Warbler Vermivora chrysoptera | Blue-winged Warbler Vermivora cyanoptera | 1 | 1 | 0 |
| Black-and-white Warbler Mniotilta varia | Swainson's Warbler Limnothlypis swainsonii | 1 | 0 | 1 |
| Prothonotary Warbler Protonotaria citrea | Crescent-chested Warbler Oreothlypis superciliosa | 1 | 0 | 1 |
| Swainson's Warbler Limnothlypis swainsonii | Orange-crowned Warbler Leiothlypis celata | 1 | 1 | 0 |
| Swainson's Warbler Limnothlypis swainsonii | Yellow Warbler Setophaga petechia | 1 | 0 | 1 |
| Crescent-chested Warbler Oreothlypis superciliosa | Tennessee Warbler Leiothlypis peregrina | 1 | 1 | 0 |
| Tennessee Warbler Leiothlypis peregrina | Lucy's Warbler Leiothlypis luciae | 1 | 1 | 0 |
| Tennessee Warbler Leiothlypis peregrina | Wilson's Warbler Cardellina pusilla | 1 | 1 | 0 |
| Orange-crowned Warbler Leiothlypis celata | Colima Warbler Leiothlypis crissalis | 1 | 0 | 1 |
| Colima Warbler Leiothlypis crissalis | Nashville Warbler Leiothlypis ruficapilla | 1 | 1 | 0 |
| Colima Warbler Leiothlypis crissalis | Virginia's Warbler Leiothlypis virginiae | 1 | 0 | 1 |
| Lucy's Warbler Leiothlypis luciae | Palm Warbler Setophaga palmarum | 1 | 1 | 0 |
| Nashville Warbler Leiothlypis ruficapilla | Virginia's Warbler Leiothlypis virginiae | 1 | 0 | 1 |
| Nashville Warbler Leiothlypis ruficapilla | Connecticut Warbler Oporornis agilis | 1 | 0 | 1 |
| Nashville Warbler Leiothlypis ruficapilla | Grey-crowned Yellowthroat Geothlypis poliocephala | 1 | 1 | 0 |
| Virginia's Warbler Leiothlypis virginiae | Grey-crowned Yellowthroat Geothlypis poliocephala | 1 | 1 | 0 |
| Virginia's Warbler Leiothlypis virginiae | Lazuli Bunting Passerina amoena | 1 | 0 | 1 |
| Connecticut Warbler Oporornis agilis | MacGillivray's Warbler Geothlypis tolmiei | 1 | 1 | 0 |
| Connecticut Warbler Oporornis agilis | Mourning Warbler Geothlypis philadelphia | 1 | 1 | 0 |
| Connecticut Warbler Oporornis agilis | Common Yellowthroat Geothlypis trichas | 1 | 1 | 0 |
| Grey-crowned Yellowthroat Geothlypis poliocephala | MacGillivray's Warbler Geothlypis tolmiei | 1 | 1 | 0 |
| Grey-crowned Yellowthroat Geothlypis poliocephala | Mourning Warbler Geothlypis philadelphia | 1 | 0 | 1 |
| Grey-crowned Yellowthroat Geothlypis poliocephala | Black-throated Grey Warbler Setophaga nigrescens | 1 | 0 | 1 |
| MacGillivray's Warbler Geothlypis tolmiei | Common Yellowthroat Geothlypis trichas | 1 | 1 | 0 |
| Kentucky Warbler Geothlypis formosa | Common Yellowthroat Geothlypis trichas | 1 | 1 | 0 |
| Kentucky Warbler Geothlypis formosa | Hooded Warbler Setophaga citrina | 1 | 1 | 0 |
| Kentucky Warbler Geothlypis formosa | Black-throated Green Warbler Setophaga virens | 1 | 1 | 0 |
| Common Yellowthroat Geothlypis trichas | Hooded Warbler Setophaga citrina | 1 | 1 | 0 |
| Common Yellowthroat Geothlypis trichas | American Redstart Setophaga ruticilla | 1 | 0 | 1 |
| Hooded Warbler Setophaga citrina | Golden-crowned Warbler Basileuterus culicivorus | 1 | 0 | 1 |
| American Redstart Setophaga ruticilla | Cape May Warbler Setophaga tigrina | 1 | 1 | 0 |
| Kirtland's Warbler Setophaga kirtlandii | Magnolia Warbler Setophaga magnolia | 1 | 1 | 0 |
| Cape May Warbler Setophaga tigrina | Cerulean Warbler Setophaga cerulea | 1 | 0 | 1 |
| Cape May Warbler Setophaga tigrina | Northern Parula Setophaga americana | 1 | 0 | 1 |
| Cape May Warbler Setophaga tigrina | Pine Warbler Setophaga pinus | 1 | 1 | 0 |
| Cerulean Warbler Setophaga cerulea | Bay-breasted Warbler Setophaga castanea | 1 | 1 | 0 |
| Cerulean Warbler Setophaga cerulea | Black-throated Grey Warbler Setophaga nigrescens | 1 | 1 | 0 |
| Tropical Parula Setophaga pitiayumi | Bay-breasted Warbler Setophaga castanea | 1 | 0 | 1 |
| Magnolia Warbler Setophaga magnolia | Bay-breasted Warbler Setophaga castanea | 1 | 0 | 1 |
| Blackburnian Warbler Setophaga fusca | Chestnut-sided Warbler Setophaga pensylvanica | 1 | 0 | 1 |
| Yellow Warbler Setophaga petechia | Chestnut-sided Warbler Setophaga pensylvanica | 1 | 1 | 0 |
| Palm Warbler Setophaga palmarum | Yellow-rumped Warbler Setophaga coronata | 1 | 1 | 0 |
| Palm Warbler Setophaga palmarum | Canada Warbler Cardellina canadensis | 1 | 1 | 0 |
| Pine Warbler Setophaga pinus | Yellow-rumped Warbler Setophaga coronata | 1 | 1 | 0 |
| Pine Warbler Setophaga pinus | Hepatic Tanager Piranga flava | 1 | 1 | 0 |
| Yellow-rumped Warbler Setophaga coronata | Northern Cardinal Cardinalis cardinalis | 1 | 1 | 0 |
| Yellow-throated Warbler Setophaga dominica | Prairie Warbler Setophaga discolor | 1 | 0 | 1 |
| Yellow-throated Warbler Setophaga dominica | Black-throated Grey Warbler Setophaga nigrescens | 1 | 1 | 0 |
| Grace's Warbler Setophaga graciae | Black-throated Grey Warbler Setophaga nigrescens | 1 | 1 | 0 |
| Grace's Warbler Setophaga graciae | Townsend's Warbler Setophaga townsendi | 1 | 0 | 1 |
| Black-throated Grey Warbler Setophaga nigrescens | Hermit Warbler Setophaga occidentalis | 1 | 0 | 1 |
| Townsend's Warbler Setophaga townsendi | Hermit Warbler Setophaga occidentalis | 1 | 0 | 1 |
| Hermit Warbler Setophaga occidentalis | Golden-cheeked Warbler Setophaga chrysoparia | 1 | 1 | 0 |
| Golden-cheeked Warbler Setophaga chrysoparia | Black-throated Green Warbler Setophaga virens | 1 | 0 | 1 |
| Golden-cheeked Warbler Setophaga chrysoparia | Mexican Fan-tailed Warbler Euthlypis lachrymosa | 1 | 0 | 1 |
| Black-throated Green Warbler Setophaga virens | Canada Warbler Cardellina canadensis | 1 | 0 | 1 |
| Black-throated Green Warbler Setophaga virens | Wilson's Warbler Cardellina pusilla | 1 | 0 | 1 |
| Mexican Fan-tailed Warbler Euthlypis lachrymosa | Rufous-capped Warbler Basileuterus rufifrons | 1 | 0 | 1 |
| Mexican Fan-tailed Warbler Euthlypis lachrymosa | Wilson's Warbler Cardellina pusilla | 1 | 0 | 1 |
| Mexican Fan-tailed Warbler Euthlypis lachrymosa | Painted Redstart Myioborus pictus | 1 | 0 | 1 |
| Golden-crowned Warbler Basileuterus culicivorus | Canada Warbler Cardellina canadensis | 1 | 1 | 0 |
| Canada Warbler Cardellina canadensis | Wilson's Warbler Cardellina pusilla | 1 | 0 | 1 |
| Painted Redstart Myioborus pictus | Slate-throated Redstart Myioborus miniatus | 1 | 0 | 1 |
| Summer Tanager Piranga rubra | Western Tanager Piranga ludoviciana | 1 | 0 | 1 |
| Summer Tanager Piranga rubra | Flame-coloured Tanager Piranga bidentata | 1 | 1 | 0 |
| Summer Tanager Piranga rubra | Pyrrhuloxia Cardinalis sinuatus | 1 | 1 | 0 |
| Summer Tanager Piranga rubra | Painted Bunting Passerina ciris | 1 | 1 | 0 |
| Scarlet Tanager Piranga olivacea | Western Tanager Piranga ludoviciana | 1 | 0 | 1 |
| Scarlet Tanager Piranga olivacea | Flame-coloured Tanager Piranga bidentata | 1 | 0 | 1 |
| Western Tanager Piranga ludoviciana | Varied Bunting Passerina versicolor | 1 | 1 | 0 |
| Pyrrhuloxia Cardinalis sinuatus | Yellow Grosbeak Pheucticus chrysopeplus | 1 | 0 | 1 |
| Yellow Grosbeak Pheucticus chrysopeplus | Varied Bunting Passerina versicolor | 1 | 0 | 1 |
| Rose-breasted Grosbeak Pheucticus ludovicianus | Black-headed Grosbeak Pheucticus melanocephalus | 1 | 0 | 1 |
| Blue Grosbeak Passerina caerulea | Lazuli Bunting Passerina amoena | 1 | 0 | 1 |
| Blue Grosbeak Passerina caerulea | Varied Bunting Passerina versicolor | 1 | 0 | 1 |
| Lazuli Bunting Passerina amoena | Indigo Bunting Passerina cyanea | 1 | 1 | 0 |
| Indigo Bunting Passerina cyanea | Painted Bunting Passerina ciris | 1 | 0 | 1 |
| Varied Bunting Passerina versicolor | Painted Bunting Passerina ciris | 1 | 0 | 1 |
| Dickcissel Spiza americana | Yellow-faced Grassquit Tiaris olivaceus | 1 | 1 | 0 |
| Red-legged Honeycreeper Cyanerpes cyaneus | Blue-black Grassquit Volatinia jacarina | 1 | 1 | 0 |
| Morelet's Seedeater Sporophila morelleti | Black-faced Grassquit Melanospiza bicolor | 1 | 1 | 0 |
| Bananaquit Coereba flaveola | Black-faced Grassquit Melanospiza bicolor | 1 | 1 | 0 |
| West Indian Whistling-Duck Dendrocygna arborea | Black Skimmer Rynchops niger | 1 | 0 | 1 |
| Fulvous Whistling-Duck Dendrocygna bicolor | Blue-winged Teal Spatula discors | 1 | 0 | 1 |
| Fulvous Whistling-Duck Dendrocygna bicolor | Northern Pintail Anas acuta | 1 | 0 | 1 |
| Snow Goose Anser caerulescens | Greater White-fronted Goose Anser albifrons | 1 | 1 | 0 |
| Snow Goose Anser caerulescens | Blue-winged Teal Spatula discors | 1 | 0 | 1 |
| Snow Goose Anser caerulescens | Steller's Eider Polysticta stelleri | 1 | 1 | 0 |
| Snow Goose Anser caerulescens | Sandhill Crane Antigone canadensis | 1 | 0 | 1 |
| Snow Goose Anser caerulescens | Marbled Murrelet Brachyramphus marmoratus | 1 | 0 | 1 |
| Snow Goose Anser caerulescens | White Ibis Eudocimus albus | 1 | 0 | 1 |
| Snow Goose Anser caerulescens | American Robin Turdus migratorius | 1 | 1 | 0 |
| Ross's Goose Anser rossii | Pink-footed Goose Anser brachyrhynchus | 1 | 1 | 0 |
| Ross's Goose Anser rossii | Bufflehead Bucephala albeola | 1 | 0 | 1 |
| Greylag Goose Anser anser | Greater White-fronted Goose Anser albifrons | 1 | 1 | 0 |
| Greylag Goose Anser anser | Green-tailed Towhee Pipilo chlorurus | 1 | 0 | 1 |
| Greater White-fronted Goose Anser albifrons | Canada Goose Branta canadensis | 1 | 0 | 1 |
| Greater White-fronted Goose Anser albifrons | Pacific Diver Gavia pacifica | 1 | 0 | 1 |
| Greater White-fronted Goose Anser albifrons | White Ibis Eudocimus albus | 1 | 0 | 1 |
| Greater White-fronted Goose Anser albifrons | Common Raven Corvus corax | 1 | 0 | 1 |
| Greater White-fronted Goose Anser albifrons | American Goldfinch Spinus tristis | 1 | 0 | 1 |
| Greater White-fronted Goose Anser albifrons | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| Greater White-fronted Goose Anser albifrons | Dark-eyed Junco Junco hyemalis | 1 | 0 | 1 |
| Pink-footed Goose Anser brachyrhynchus | Brent Goose Branta bernicla | 1 | 0 | 1 |
| Pink-footed Goose Anser brachyrhynchus | Hawaiian Goose Branta sandvicensis | 1 | 1 | 0 |
| Brent Goose Branta bernicla | Barnacle Goose Branta leucopsis | 1 | 1 | 0 |
| Brent Goose Branta bernicla | Cackling Goose Branta hutchinsii | 1 | 1 | 0 |
| Canada Goose Branta canadensis | Northern Bobwhite Colinus virginianus | 1 | 1 | 0 |
| Canada Goose Branta canadensis | Willow Ptarmigan Lagopus lagopus | 1 | 1 | 0 |
| Canada Goose Branta canadensis | Tree Swallow Tachycineta bicolor | 1 | 0 | 1 |
| Bewick's Swan Cygnus columbianus | Whooper Swan Cygnus cygnus | 1 | 1 | 0 |
| Whooper Swan Cygnus cygnus | Hooded Crane Grus monacha | 1 | 1 | 0 |
| Common Shelduck Tadorna tadorna | Muscovy Duck Cairina moschata | 1 | 0 | 1 |
| Blue-winged Teal Spatula discors | Cinnamon Teal Spatula cyanoptera | 1 | 0 | 1 |
| Cinnamon Teal Spatula cyanoptera | Northern Shoveler Spatula clypeata | 1 | 0 | 1 |
| Cinnamon Teal Spatula cyanoptera | Dusky Grouse Dendragapus obscurus | 1 | 1 | 0 |
| Cinnamon Teal Spatula cyanoptera | Common Snipe Gallinago gallinago | 1 | 0 | 1 |
| Northern Shoveler Spatula clypeata | Oriental Pratincole Glareola maldivarum | 1 | 0 | 1 |
| Gadwall Mareca strepera | Hawaiian Duck Anas wyvilliana | 1 | 1 | 0 |
| Falcated Duck Mareca falcata | American Wigeon Mareca americana | 1 | 1 | 0 |
| Eurasian Wigeon Mareca penelope | American Wigeon Mareca americana | 1 | 1 | 0 |
| Laysan Duck Anas laysanensis | Hawaiian Duck Anas wyvilliana | 1 | 1 | 0 |
| Laysan Duck Anas laysanensis | American Black Duck Anas rubripes | 1 | 1 | 0 |
| Hawaiian Duck Anas wyvilliana | American Black Duck Anas rubripes | 1 | 1 | 0 |
| Mallard Anas platyrhynchos | Mottled Duck Anas fulvigula | 1 | 0 | 1 |
| Mallard Anas platyrhynchos | Eurasian/Green-winged Teal Anas crecca | 1 | 1 | 0 |
| Mallard Anas platyrhynchos | White-crowned Sparrow Zonotrichia leucophrys | 1 | 1 | 0 |
| American Black Duck Anas rubripes | Mottled Duck Anas fulvigula | 1 | 0 | 1 |
| American Black Duck Anas rubripes | Northern Pintail Anas acuta | 1 | 1 | 0 |
| Northern Pintail Anas acuta | Yellow-headed Blackbird Xanthocephalus xanthocephalus | 1 | 0 | 1 |
| Canvasback Aythya valisineria | Crissal Thrasher Toxostoma crissale | 1 | 0 | 1 |
| Redhead Aythya americana | Common Pochard Aythya ferina | 1 | 0 | 1 |
| Redhead Aythya americana | Ring-necked Duck Aythya collaris | 1 | 1 | 0 |
| Redhead Aythya americana | Black-necked Grebe Podiceps nigricollis | 1 | 0 | 1 |
| Tufted Duck Aythya fuligula | Lesser Scaup Aythya affinis | 1 | 0 | 1 |
| Tufted Duck Aythya fuligula | Pied Wheatear Oenanthe pleschanka | 1 | 1 | 0 |
| Lesser Scaup Aythya affinis | Labrador Duck Camptorhynchus labradorius | 1 | 1 | 0 |
| Lesser Scaup Aythya affinis | Long-billed Dowitcher Limnodromus scolopaceus | 1 | 1 | 0 |
| Lesser Scaup Aythya affinis | Grey Phalarope Phalaropus fulicarius | 1 | 0 | 1 |
| Lesser Scaup Aythya affinis | Red-footed Booby Sula sula | 1 | 1 | 0 |
| Lesser Scaup Aythya affinis | Omao Myadestes obscurus | 1 | 1 | 0 |
| Lesser Scaup Aythya affinis | Eastern Yellow Wagtail Motacilla tschutschensis | 1 | 1 | 0 |
| Steller's Eider Polysticta stelleri | Cedar Waxwing Bombycilla cedrorum | 1 | 1 | 0 |
| Spectacled Eider Somateria fischeri | Common Eider Somateria mollissima | 1 | 0 | 1 |
| Spectacled Eider Somateria fischeri | Willet Tringa semipalmata | 1 | 1 | 0 |
| Harlequin Duck Histrionicus histrionicus | White-winged Scoter Melanitta deglandi | 1 | 1 | 0 |
| Harlequin Duck Histrionicus histrionicus | Black Scoter Melanitta americana | 1 | 1 | 0 |
| White-winged Scoter Melanitta deglandi | Black Scoter Melanitta americana | 1 | 1 | 0 |
| White-winged Scoter Melanitta deglandi | Long-tailed Duck Clangula hyemalis | 1 | 0 | 1 |
| White-winged Scoter Melanitta deglandi | Ancient Murrelet Synthliboramphus antiquus | 1 | 0 | 1 |
| White-winged Scoter Melanitta deglandi | Pied Wagtail/White Wagtail Motacilla alba | 1 | 0 | 1 |
| White-winged Scoter Melanitta deglandi | Kauai Amakihi Chlorodrepanis stejnegeri | 1 | 1 | 0 |
| Stejneger's Scoter Melanitta stejnegeri | Common Scoter Melanitta nigra | 1 | 1 | 0 |
| Common Scoter Melanitta nigra | Red-necked Grebe Podiceps grisegena | 1 | 0 | 1 |
| Black Scoter Melanitta americana | Long-tailed Duck Clangula hyemalis | 1 | 1 | 0 |
| Black Scoter Melanitta americana | Bufflehead Bucephala albeola | 1 | 0 | 1 |
| Black Scoter Melanitta americana | Common Goldeneye Bucephala clangula | 1 | 1 | 0 |
| Black Scoter Melanitta americana | Black-necked Stilt Himantopus mexicanus | 1 | 0 | 1 |
| Black Scoter Melanitta americana | Ou Psittirostra psittacea | 1 | 1 | 0 |
| Long-tailed Duck Clangula hyemalis | Common Goldeneye Bucephala clangula | 1 | 0 | 1 |
| Long-tailed Duck Clangula hyemalis | Hooded Merganser Lophodytes cucullatus | 1 | 1 | 0 |
| Bufflehead Bucephala albeola | Double-crested Cormorant Nannopterum auritum | 1 | 1 | 0 |
| Common Goldeneye Bucephala clangula | Barrow's Goldeneye Bucephala islandica | 1 | 1 | 0 |
| Common Goldeneye Bucephala clangula | Sooty Grouse Dendragapus fuliginosus | 1 | 1 | 0 |
| Common Goldeneye Bucephala clangula | Bobolink Dolichonyx oryzivorus | 1 | 1 | 0 |
| Barrow's Goldeneye Bucephala islandica | Craveri's Murrelet Synthliboramphus craveri | 1 | 1 | 0 |
| Smew Mergellus albellus | Red-breasted Merganser Mergus serrator | 1 | 1 | 0 |
| Goosander Mergus merganser | Dunlin Calidris alpina | 1 | 0 | 1 |
| Red-breasted Merganser Mergus serrator | Masked Duck Nomonyx dominicus | 1 | 0 | 1 |
| Masked Duck Nomonyx dominicus | Ruddy Duck Oxyura jamaicensis | 1 | 0 | 1 |
| Ruddy Duck Oxyura jamaicensis | Marbled Murrelet Brachyramphus marmoratus | 1 | 1 | 0 |
| Mountain Quail Oreortyx pictus | Gambel's Quail Callipepla gambelii | 1 | 0 | 1 |
| Mountain Quail Oreortyx pictus | Marsh Wren Cistothorus palustris | 1 | 1 | 0 |
| Northern Bobwhite Colinus virginianus | Gunnison Sage-Grouse Centrocercus minimus | 1 | 0 | 1 |
| Northern Bobwhite Colinus virginianus | Willow Ptarmigan Lagopus lagopus | 1 | 1 | 0 |
| Northern Bobwhite Colinus virginianus | Mourning Dove Zenaida macroura | 1 | 0 | 1 |
| Northern Bobwhite Colinus virginianus | American Kestrel Falco sparverius | 1 | 1 | 0 |
| Northern Bobwhite Colinus virginianus | American Crow Corvus brachyrhynchos | 1 | 0 | 1 |
| Northern Bobwhite Colinus virginianus | Tufted Titmouse Baeolophus bicolor | 1 | 1 | 0 |
| Northern Bobwhite Colinus virginianus | Purple Martin Progne subis | 1 | 0 | 1 |
| Northern Bobwhite Colinus virginianus | American Goldfinch Spinus tristis | 1 | 0 | 1 |
| Northern Bobwhite Colinus virginianus | White-crowned Sparrow Zonotrichia leucophrys | 1 | 0 | 1 |
| Northern Bobwhite Colinus virginianus | Yellow-rumped Warbler Setophaga coronata | 1 | 0 | 1 |
| Scaled Quail Callipepla squamata | California Quail Callipepla californica | 1 | 0 | 1 |
| Scaled Quail Callipepla squamata | Montezuma Quail Cyrtonyx montezumae | 1 | 1 | 0 |
| Scaled Quail Callipepla squamata | Wild Turkey Meleagris gallopavo | 1 | 1 | 0 |
| Scaled Quail Callipepla squamata | Wedge-rumped Storm-Petrel Hydrobates tethys | 1 | 0 | 1 |
| Scaled Quail Callipepla squamata | Kamao Myadestes myadestinus | 1 | 0 | 1 |
| California Quail Callipepla californica | Lanceolated Warbler Locustella lanceolata | 1 | 1 | 0 |
| Montezuma Quail Cyrtonyx montezumae | Ruffed Grouse Bonasa umbellus | 1 | 1 | 0 |
| Wild Turkey Meleagris gallopavo | Ruffed Grouse Bonasa umbellus | 1 | 0 | 1 |
| Ruffed Grouse Bonasa umbellus | Greater Sage-Grouse Centrocercus urophasianus | 1 | 0 | 1 |
| Ruffed Grouse Bonasa umbellus | Dusky Grouse Dendragapus obscurus | 1 | 1 | 0 |
| Ruffed Grouse Bonasa umbellus | Sooty Grouse Dendragapus fuliginosus | 1 | 0 | 1 |
| Greater Sage-Grouse Centrocercus urophasianus | Gunnison Sage-Grouse Centrocercus minimus | 1 | 0 | 1 |
| Greater Sage-Grouse Centrocercus urophasianus | Dusky Grouse Dendragapus obscurus | 1 | 0 | 1 |
| Greater Sage-Grouse Centrocercus urophasianus | Sharp-tailed Grouse Tympanuchus phasianellus | 1 | 0 | 1 |
| Dusky Grouse Dendragapus obscurus | Sharp-tailed Grouse Tympanuchus phasianellus | 1 | 0 | 1 |
| Sooty Grouse Dendragapus fuliginosus | Greater Prairie-Chicken Tympanuchus cupido | 1 | 1 | 0 |
| Sharp-tailed Grouse Tympanuchus phasianellus | Greater Prairie-Chicken Tympanuchus cupido | 1 | 0 | 1 |
| Lesser Prairie-Chicken Tympanuchus pallidicinctus | White-tailed Ptarmigan Lagopus leucura | 1 | 0 | 1 |
| Lesser Prairie-Chicken Tympanuchus pallidicinctus | Aplomado Falcon Falco femoralis | 1 | 0 | 1 |
| White-tailed Ptarmigan Lagopus leucura | Spruce Grouse Canachites canadensis | 1 | 0 | 1 |
| White-tailed Ptarmigan Lagopus leucura | Common Hoopoe Upupa epops | 1 | 1 | 0 |
| Willow Ptarmigan Lagopus lagopus | Rock Ptarmigan Lagopus muta | 1 | 0 | 1 |
| Willow Ptarmigan Lagopus lagopus | Spruce Grouse Canachites canadensis | 1 | 0 | 1 |
| Willow Ptarmigan Lagopus lagopus | Mourning Dove Zenaida macroura | 1 | 1 | 0 |
| Willow Ptarmigan Lagopus lagopus | Glaucous-winged Gull Larus glaucescens | 1 | 1 | 0 |
| Willow Ptarmigan Lagopus lagopus | Turkey Vulture Cathartes aura | 1 | 0 | 1 |
| Willow Ptarmigan Lagopus lagopus | Tufted Titmouse Baeolophus bicolor | 1 | 1 | 0 |
| Willow Ptarmigan Lagopus lagopus | Tree Swallow Tachycineta bicolor | 1 | 0 | 1 |
| Willow Ptarmigan Lagopus lagopus | Lapland Bunting Calcarius lapponicus | 1 | 1 | 0 |
| Willow Ptarmigan Lagopus lagopus | Dark-eyed Junco Junco hyemalis | 1 | 0 | 1 |
| Willow Ptarmigan Lagopus lagopus | Western Meadowlark Sturnella neglecta | 1 | 1 | 0 |
| Rock Ptarmigan Lagopus muta | Common Ringed Plover Charadrius hiaticula | 1 | 1 | 0 |
| Rock Ptarmigan Lagopus muta | Small-billed Elaenia Elaenia parvirostris | 1 | 1 | 0 |
| Spruce Grouse Canachites canadensis | Eastern Phoebe Sayornis phoebe | 1 | 1 | 0 |
| Pied-billed Grebe Podilymbus podiceps | Western Grebe Aechmophorus occidentalis | 1 | 0 | 1 |
| Slavonian Grebe Podiceps auritus | Marsh Wren Cistothorus palustris | 1 | 1 | 0 |
| Red-necked Grebe Podiceps grisegena | Blue Grosbeak Passerina caerulea | 1 | 1 | 0 |
| Black-necked Grebe Podiceps nigricollis | Western Grebe Aechmophorus occidentalis | 1 | 0 | 1 |
| Western Grebe Aechmophorus occidentalis | Clark's Grebe Aechmophorus clarkii | 1 | 0 | 1 |
| Western Grebe Aechmophorus occidentalis | Limpkin Aramus guarauna | 1 | 1 | 0 |
| Clark's Grebe Aechmophorus clarkii | White-breasted Nuthatch Sitta carolinensis | 1 | 0 | 1 |
| Scaly-naped Pigeon Patagioenas squamosa | Red-billed Pigeon Patagioenas flavirostris | 1 | 1 | 0 |
| Scaly-naped Pigeon Patagioenas squamosa | Common Ground Dove Columbina passerina | 1 | 0 | 1 |
| Band-tailed Pigeon Patagioenas fasciata | Inca Dove Columbina inca | 1 | 1 | 0 |
| European Turtle Dove Streptopelia turtur | Rufous Turtle Dove Streptopelia orientalis | 1 | 1 | 0 |
| European Turtle Dove Streptopelia turtur | Inca Dove Columbina inca | 1 | 1 | 0 |
| Inca Dove Columbina inca | Common Ground Dove Columbina passerina | 1 | 0 | 1 |
| Common Ground Dove Columbina passerina | Mourning Dove Zenaida macroura | 1 | 1 | 0 |
| Common Ground Dove Columbina passerina | Eurasian Dotterel Eudromias morinellus | 1 | 0 | 1 |
| Ruddy Ground Dove Columbina talpacoti | Brown-backed Solitaire Myadestes occidentalis | 1 | 0 | 1 |
| Ruddy Quail-Dove Geotrygon montana | Key West Quail-Dove Geotrygon chrysia | 1 | 1 | 0 |
| Ruddy Quail-Dove Geotrygon montana | White-tipped Dove Leptotila verreauxi | 1 | 0 | 1 |
| White-tipped Dove Leptotila verreauxi | Zenaida Dove Zenaida aurita | 1 | 1 | 0 |
| White-winged Dove Zenaida asiatica | Zenaida Dove Zenaida aurita | 1 | 1 | 0 |
| White-winged Dove Zenaida asiatica | Mourning Dove Zenaida macroura | 1 | 1 | 0 |
| Mourning Dove Zenaida macroura | Red-bellied Woodpecker Melanerpes carolinus | 1 | 0 | 1 |
| Mourning Dove Zenaida macroura | Cliff Swallow Petrochelidon pyrrhonota | 1 | 1 | 0 |
| Mourning Dove Zenaida macroura | American Robin Turdus migratorius | 1 | 1 | 0 |
| Mourning Dove Zenaida macroura | Dark-eyed Junco Junco hyemalis | 1 | 0 | 1 |
| Smooth-billed Ani Crotophaga ani | Black-billed Cuckoo Coccyzus erythropthalmus | 1 | 1 | 0 |
| Smooth-billed Ani Crotophaga ani | Common Cuckoo Cuculus canorus | 1 | 0 | 1 |
| Groove-billed Ani Crotophaga sulcirostris | Common Cuckoo Cuculus canorus | 1 | 0 | 1 |
| Greater Roadrunner Geococcyx californianus | Yellow-billed Cuckoo Coccyzus americanus | 1 | 0 | 1 |
| Greater Roadrunner Geococcyx californianus | Brewer's Blackbird Euphagus cyanocephalus | 1 | 0 | 1 |
| Dark-billed Cuckoo Coccyzus melacoryphus | Mangrove Cuckoo Coccyzus minor | 1 | 1 | 0 |
| Dark-billed Cuckoo Coccyzus melacoryphus | Dusky Thrush Turdus eunomus | 1 | 1 | 0 |
| Yellow-billed Cuckoo Coccyzus americanus | Pectoral Sandpiper Calidris melanotos | 1 | 1 | 0 |
| Mangrove Cuckoo Coccyzus minor | Western Wood-Pewee Contopus sordidulus | 1 | 1 | 0 |
| Mangrove Cuckoo Coccyzus minor | Varied Thrush Ixoreus naevius | 1 | 0 | 1 |
| Mangrove Cuckoo Coccyzus minor | Rose-breasted Grosbeak Pheucticus ludovicianus | 1 | 1 | 0 |
| Oriental Cuckoo Cuculus optatus | Eastern Phoebe Sayornis phoebe | 1 | 1 | 0 |
| Lesser Nighthawk Chordeiles acutipennis | Common Poorwill Phalaenoptilus nuttallii | 1 | 1 | 0 |
| Lesser Nighthawk Chordeiles acutipennis | Eastern Whip-poor-will Antrostomus vociferus | 1 | 1 | 0 |
| Common Nighthawk Chordeiles minor | Antillean Nighthawk Chordeiles gundlachii | 1 | 0 | 1 |
| Common Nighthawk Chordeiles minor | Common Pauraque Nyctidromus albicollis | 1 | 0 | 1 |
| Common Nighthawk Chordeiles minor | Grey Nightjar Caprimulgus jotaka | 1 | 0 | 1 |
| Common Nighthawk Chordeiles minor | Grey-cheeked Thrush Catharus minimus | 1 | 1 | 0 |
| Common Nighthawk Chordeiles minor | Black-chinned Sparrow Spizella atrogularis | 1 | 1 | 0 |
| Antillean Nighthawk Chordeiles gundlachii | Common Poorwill Phalaenoptilus nuttallii | 1 | 0 | 1 |
| Antillean Nighthawk Chordeiles gundlachii | Sooty Tern Onychoprion fuscatus | 1 | 1 | 0 |
| Antillean Nighthawk Chordeiles gundlachii | Buff-bellied Pipit Anthus rubescens | 1 | 1 | 0 |
| Common Pauraque Nyctidromus albicollis | Buff-collared Nightjar Antrostomus ridgwayi | 1 | 1 | 0 |
| Common Pauraque Nyctidromus albicollis | Black Noddy Anous minutus | 1 | 0 | 1 |
| Common Pauraque Nyctidromus albicollis | Williamson's Sapsucker Sphyrapicus thyroideus | 1 | 1 | 0 |
| Common Pauraque Nyctidromus albicollis | Prairie Falcon Falco mexicanus | 1 | 1 | 0 |
| Chuck-will's-widow Antrostomus carolinensis | Mexican Whip-poor-will Antrostomus arizonae | 1 | 0 | 1 |
| Buff-collared Nightjar Antrostomus ridgwayi | Eastern Whip-poor-will Antrostomus vociferus | 1 | 1 | 0 |
| Buff-collared Nightjar Antrostomus ridgwayi | Mottled Petrel Pterodroma inexpectata | 1 | 1 | 0 |
| Buff-collared Nightjar Antrostomus ridgwayi | Red-flanked Bluetail Tarsiger cyanurus | 1 | 0 | 1 |
| Eastern Whip-poor-will Antrostomus vociferus | Hawfinch Coccothraustes coccothraustes | 1 | 1 | 0 |
| Mexican Whip-poor-will Antrostomus arizonae | Grey Nightjar Caprimulgus jotaka | 1 | 1 | 0 |
| Grey Nightjar Caprimulgus jotaka | Surfbird Calidris virgata | 1 | 1 | 0 |
| Black Swift Cypseloides niger | Chimney Swift Chaetura pelagica | 1 | 0 | 1 |
| Black Swift Cypseloides niger | Vaux's Swift Chaetura vauxi | 1 | 1 | 0 |
| White-collared Swift Streptoprocne zonaris | Vaux's Swift Chaetura vauxi | 1 | 1 | 0 |
| White-collared Swift Streptoprocne zonaris | White-throated Swift Aeronautes saxatalis | 1 | 0 | 1 |
| Chimney Swift Chaetura pelagica | White-throated Swift Aeronautes saxatalis | 1 | 0 | 1 |
| Vaux's Swift Chaetura vauxi | White-throated Swift Aeronautes saxatalis | 1 | 0 | 1 |
| Vaux's Swift Chaetura vauxi | Laughing Gull Leucophaeus atricilla | 1 | 0 | 1 |
| Vaux's Swift Chaetura vauxi | Chinese Pond Heron Ardeola bacchus | 1 | 1 | 0 |
| Vaux's Swift Chaetura vauxi | Cooper's Hawk Astur cooperii | 1 | 1 | 0 |
| White-throated Needletail Hirundapus caudacutus | Antillean Palm Swift Tachornis phoenicobia | 1 | 0 | 1 |
| Common Swift Apus apus | Pacific Swift Apus pacificus | 1 | 0 | 1 |
| Common Swift Apus apus | Antillean Palm Swift Tachornis phoenicobia | 1 | 0 | 1 |
| Pacific Swift Apus pacificus | Ringed Kingfisher Megaceryle torquata | 1 | 1 | 0 |
| Mexican Violetear Colibri thalassinus | Rivoli's Hummingbird Eugenes fulgens | 1 | 1 | 0 |
| Mexican Violetear Colibri thalassinus | Black-chinned Hummingbird Archilochus alexandri | 1 | 1 | 0 |
| Mexican Violetear Colibri thalassinus | Broad-billed Hummingbird Cynanthus latirostris | 1 | 1 | 0 |
| Rivoli's Hummingbird Eugenes fulgens | Amethyst-throated Mountain-gem Lampornis amethystinus | 1 | 1 | 0 |
| Rivoli's Hummingbird Eugenes fulgens | Blue-throated Mountain-gem Lampornis clemenciae | 1 | 0 | 1 |
| Black-chinned Hummingbird Archilochus alexandri | Bahama Woodstar Nesophlox evelynae | 1 | 0 | 1 |
| Black-chinned Hummingbird Archilochus alexandri | Anna's Hummingbird Calypte anna | 1 | 1 | 0 |
| Bahama Woodstar Nesophlox evelynae | Costa's Hummingbird Calypte costae | 1 | 1 | 0 |
| Bahama Woodstar Nesophlox evelynae | Calliope Hummingbird Selasphorus calliope | 1 | 1 | 0 |
| Bahama Woodstar Nesophlox evelynae | Rufous Hummingbird Selasphorus rufus | 1 | 1 | 0 |
| Anna's Hummingbird Calypte anna | Calliope Hummingbird Selasphorus calliope | 1 | 1 | 0 |
| Anna's Hummingbird Calypte anna | Rufous Hummingbird Selasphorus rufus | 1 | 1 | 0 |
| Anna's Hummingbird Calypte anna | Broad-tailed Hummingbird Selasphorus platycercus | 1 | 0 | 1 |
| Calliope Hummingbird Selasphorus calliope | Allen's Hummingbird Selasphorus sasin | 1 | 1 | 0 |
| Calliope Hummingbird Selasphorus calliope | Broad-tailed Hummingbird Selasphorus platycercus | 1 | 1 | 0 |
| Calliope Hummingbird Selasphorus calliope | Berylline Hummingbird Saucerottia beryllina | 1 | 0 | 1 |
| Broad-tailed Hummingbird Selasphorus platycercus | Bumblebee Hummingbird Selasphorus heloisa | 1 | 0 | 1 |
| Broad-tailed Hummingbird Selasphorus platycercus | Broad-billed Hummingbird Cynanthus latirostris | 1 | 1 | 0 |
| Broad-billed Hummingbird Cynanthus latirostris | White-eared Hummingbird Basilinna leucotis | 1 | 0 | 1 |
| Broad-billed Hummingbird Cynanthus latirostris | Xantus's Hummingbird Basilinna xantusii | 1 | 1 | 0 |
| Broad-billed Hummingbird Cynanthus latirostris | Cinnamon Hummingbird Amazilia rutila | 1 | 0 | 1 |
| White-eared Hummingbird Basilinna leucotis | Xantus's Hummingbird Basilinna xantusii | 1 | 0 | 1 |
| White-eared Hummingbird Basilinna leucotis | Spotted Flycatcher Muscicapa striata | 1 | 1 | 0 |
| Xantus's Hummingbird Basilinna xantusii | Berylline Hummingbird Saucerottia beryllina | 1 | 0 | 1 |
| Violet-crowned Hummingbird Ramosomyia violiceps | Cinnamon Hummingbird Amazilia rutila | 1 | 0 | 1 |
| Ridgway's Rail Rallus obsoletus | Puaiohi Myadestes palmeri | 1 | 0 | 1 |
| King Rail Rallus elegans | Clapper Rail Rallus crepitans | 1 | 1 | 0 |
| King Rail Rallus elegans | Virginia Rail Rallus limicola | 1 | 0 | 1 |
| King Rail Rallus elegans | Jack Snipe Lymnocryptes minimus | 1 | 1 | 0 |
| Clapper Rail Rallus crepitans | Virginia Rail Rallus limicola | 1 | 0 | 1 |
| Clapper Rail Rallus crepitans | American Coot Fulica americana | 1 | 1 | 0 |
| Clapper Rail Rallus crepitans | Purple Sandpiper Calidris maritima | 1 | 0 | 1 |
| Clapper Rail Rallus crepitans | Olive Warbler Peucedramus taeniatus | 1 | 0 | 1 |
| Virginia Rail Rallus limicola | Corncrake Crex crex | 1 | 1 | 0 |
| Virginia Rail Rallus limicola | Spotted Rail Pardirallus maculatus | 1 | 1 | 0 |
| Virginia Rail Rallus limicola | Paint-billed Crake Mustelirallus erythrops | 1 | 1 | 0 |
| Virginia Rail Rallus limicola | Sora Porzana carolina | 1 | 1 | 0 |
| Virginia Rail Rallus limicola | Least Tern Sternula antillarum | 1 | 1 | 0 |
| Virginia Rail Rallus limicola | Crested Caracara Caracara plancus | 1 | 1 | 0 |
| Virginia Rail Rallus limicola | Bobolink Dolichonyx oryzivorus | 1 | 0 | 1 |
| Virginia Rail Rallus limicola | Painted Redstart Myioborus pictus | 1 | 0 | 1 |
| Spotted Rail Pardirallus maculatus | Rufous-necked Wood-Rail Aramides axillaris | 1 | 1 | 0 |
| Paint-billed Crake Mustelirallus erythrops | Azure Gallinule Porphyrio flavirostris | 1 | 0 | 1 |
| Rufous-necked Wood-Rail Aramides axillaris | Common Moorhen Gallinula chloropus | 1 | 0 | 1 |
| Rufous-necked Wood-Rail Aramides axillaris | Black Rail Laterallus jamaicensis | 1 | 0 | 1 |
| Sora Porzana carolina | Common Moorhen Gallinula chloropus | 1 | 0 | 1 |
| Common Moorhen Gallinula chloropus | American Moorhen Gallinula galeata | 1 | 1 | 0 |
| American Moorhen Gallinula galeata | Hawaiian Coot Fulica alai | 1 | 1 | 0 |
| Eurasian Coot Fulica atra | Hawaiian Coot Fulica alai | 1 | 0 | 1 |
| Eurasian Coot Fulica atra | American Coot Fulica americana | 1 | 0 | 1 |
| Eurasian Coot Fulica atra | Purple Gallinule Porphyrio martinica | 1 | 1 | 0 |
| Eurasian Coot Fulica atra | Jabiru Jabiru mycteria | 1 | 1 | 0 |
| Eurasian Coot Fulica atra | Greater Pewee Contopus pertinax | 1 | 0 | 1 |
| Hawaiian Coot Fulica alai | Yellow Rail Coturnicops noveboracensis | 1 | 0 | 1 |
| Hawaiian Coot Fulica alai | Northern Wheatear Oenanthe oenanthe | 1 | 1 | 0 |
| American Coot Fulica americana | Jouanin's Petrel Bulweria fallax | 1 | 0 | 1 |
| Purple Gallinule Porphyrio martinica | Common Greenshank Tringa nebularia | 1 | 0 | 1 |
| Purple Gallinule Porphyrio martinica | Hawaii Elepaio Chasiempis sandwichensis | 1 | 0 | 1 |
| Yellow Rail Coturnicops noveboracensis | Barn Swallow Hirundo rustica | 1 | 1 | 0 |
| Black Rail Laterallus jamaicensis | Cliff Swallow Petrochelidon pyrrhonota | 1 | 0 | 1 |
| Limpkin Aramus guarauna | Herring Gull Larus argentatus | 1 | 1 | 0 |
| Sandhill Crane Antigone canadensis | Whooping Crane Grus americana | 1 | 0 | 1 |
| Sandhill Crane Antigone canadensis | Carolina Chickadee Poecile carolinensis | 1 | 1 | 0 |
| Sandhill Crane Antigone canadensis | Western Meadowlark Sturnella neglecta | 1 | 1 | 0 |
| Black-winged Stilt Himantopus himantopus | Altamira Oriole Icterus gularis | 1 | 0 | 1 |
| Black-necked Stilt Himantopus mexicanus | Black-chinned Sparrow Spizella atrogularis | 1 | 0 | 1 |
| American Avocet Recurvirostra americana | American Oystercatcher Haematopus palliatus | 1 | 1 | 0 |
| Eurasian Oystercatcher Haematopus ostralegus | American Oystercatcher Haematopus palliatus | 1 | 1 | 0 |
| Eurasian Oystercatcher Haematopus ostralegus | Black Oystercatcher Haematopus bachmani | 1 | 0 | 1 |
| American Oystercatcher Haematopus palliatus | California Scrub-Jay Aphelocoma californica | 1 | 0 | 1 |
| American Oystercatcher Haematopus palliatus | Sprague's Pipit Anthus spragueii | 1 | 0 | 1 |
| Grey Plover Pluvialis squatarola | European Golden Plover Pluvialis apricaria | 1 | 0 | 1 |
| Grey Plover Pluvialis squatarola | American Golden Plover Pluvialis dominica | 1 | 1 | 0 |
| Grey Plover Pluvialis squatarola | Pacific Golden Plover Pluvialis fulva | 1 | 1 | 0 |
| Grey Plover Pluvialis squatarola | Killdeer Charadrius vociferus | 1 | 1 | 0 |
| European Golden Plover Pluvialis apricaria | Siberian Blue Robin Larvivora cyane | 1 | 0 | 1 |
| American Golden Plover Pluvialis dominica | Pacific Golden Plover Pluvialis fulva | 1 | 0 | 1 |
| Pacific Golden Plover Pluvialis fulva | Northern Waterthrush Parkesia noveboracensis | 1 | 0 | 1 |
| Pacific Golden Plover Pluvialis fulva | Blackpoll Warbler Setophaga striata | 1 | 1 | 0 |
| Eurasian Dotterel Eudromias morinellus | Northern Lapwing Vanellus vanellus | 1 | 1 | 0 |
| Killdeer Charadrius vociferus | Mountain Plover Anarhynchus montanus | 1 | 0 | 1 |
| Killdeer Charadrius vociferus | Leach's Storm-Petrel Hydrobates leucorhous | 1 | 0 | 1 |
| Common Ringed Plover Charadrius hiaticula | Piping Plover Charadrius melodus | 1 | 1 | 0 |
| Common Ringed Plover Charadrius hiaticula | Slaty-backed Gull Larus schistisagus | 1 | 1 | 0 |
| Semipalmated Plover Charadrius semipalmatus | Mountain Plover Anarhynchus montanus | 1 | 0 | 1 |
| Semipalmated Plover Charadrius semipalmatus | Murphy's Petrel Pterodroma ultima | 1 | 1 | 0 |
| Little Ringed Plover Thinornis dubius | Bell's Vireo Vireo bellii | 1 | 1 | 0 |
| Little Ringed Plover Thinornis dubius | Omao Myadestes obscurus | 1 | 0 | 1 |
| Northern Lapwing Vanellus vanellus | Mountain Plover Anarhynchus montanus | 1 | 0 | 1 |
| Northern Lapwing Vanellus vanellus | Lapland Bunting Calcarius lapponicus | 1 | 1 | 0 |
| Siberian Sand Plover Anarhynchus mongolus | Wilson's Plover Anarhynchus wilsonia | 1 | 0 | 1 |
| Siberian Sand Plover Anarhynchus mongolus | Brown Creeper Certhia americana | 1 | 1 | 0 |
| Wilson's Plover Anarhynchus wilsonia | Gila Woodpecker Melanerpes uropygialis | 1 | 0 | 1 |
| Mountain Plover Anarhynchus montanus | Olive-sided Flycatcher Contopus cooperi | 1 | 1 | 0 |
| Snowy Plover Anarhynchus nivosus | Black-footed Albatross Phoebastria nigripes | 1 | 1 | 0 |
| Snowy Plover Anarhynchus nivosus | Eastern Screech-Owl Megascops asio | 1 | 1 | 0 |
| Snowy Plover Anarhynchus nivosus | Red-throated Pipit Anthus cervinus | 1 | 0 | 1 |
| Upland Sandpiper Bartramia longicauda | Little Whimbrel Numenius minutus | 1 | 1 | 0 |
| Upland Sandpiper Bartramia longicauda | Least Sandpiper Calidris minutilla | 1 | 0 | 1 |
| Whimbrel Numenius phaeopus | Eurasian Curlew Numenius arquata | 1 | 1 | 0 |
| Far Eastern Curlew Numenius madagascariensis | Great Frigatebird Fregata minor | 1 | 0 | 1 |
| Eurasian Curlew Numenius arquata | Bar-tailed Godwit Limosa lapponica | 1 | 0 | 1 |
| Eurasian Curlew Numenius arquata | Hudsonian Godwit Limosa haemastica | 1 | 1 | 0 |
| Eurasian Curlew Numenius arquata | Streaked Shearwater Calonectris leucomelas | 1 | 1 | 0 |
| Bar-tailed Godwit Limosa lapponica | Hudsonian Godwit Limosa haemastica | 1 | 1 | 0 |
| Black-tailed Godwit Limosa limosa | Yellow Bittern Botaurus sinensis | 1 | 1 | 0 |
| Black-tailed Godwit Limosa limosa | American Black Vulture Coragyps atratus | 1 | 0 | 1 |
| Hudsonian Godwit Limosa haemastica | Marbled Godwit Limosa fedoa | 1 | 0 | 1 |
| Marbled Godwit Limosa fedoa | Tropical Kingbird Tyrannus melancholicus | 1 | 0 | 1 |
| Marbled Godwit Limosa fedoa | Canada Jay Perisoreus canadensis | 1 | 0 | 1 |
| Short-billed Dowitcher Limnodromus griseus | Semipalmated Sandpiper Calidris pusilla | 1 | 1 | 0 |
| Short-billed Dowitcher Limnodromus griseus | White-throated Thrush Turdus assimilis | 1 | 0 | 1 |
| Short-billed Dowitcher Limnodromus griseus | Oahu Amakihi Chlorodrepanis flava | 1 | 0 | 1 |
| Short-billed Dowitcher Limnodromus griseus | Black-headed Grosbeak Pheucticus melanocephalus | 1 | 1 | 0 |
| American Woodcock Scolopax minor | Wilson's Snipe Gallinago delicata | 1 | 0 | 1 |
| American Woodcock Scolopax minor | Band-rumped Storm-Petrel Hydrobates castro | 1 | 0 | 1 |
| Solitary Snipe Gallinago solitaria | Pin-tailed Snipe Gallinago stenura | 1 | 1 | 0 |
| Pin-tailed Snipe Gallinago stenura | Rock Sandpiper Calidris ptilocnemis | 1 | 1 | 0 |
| Pin-tailed Snipe Gallinago stenura | Marsh Wren Cistothorus palustris | 1 | 0 | 1 |
| Common Snipe Gallinago gallinago | Scissor-tailed Flycatcher Tyrannus forficatus | 1 | 1 | 0 |
| Wilson's Snipe Gallinago delicata | Veery Catharus fuscescens | 1 | 1 | 0 |
| Wilson's Phalarope Phalaropus tricolor | Grey Phalarope Phalaropus fulicarius | 1 | 1 | 0 |
| Wilson's Phalarope Phalaropus tricolor | Tropical Kingbird Tyrannus melancholicus | 1 | 0 | 1 |
| Grey Phalarope Phalaropus fulicarius | Red-breasted Nuthatch Sitta canadensis | 1 | 0 | 1 |
| Grey Phalarope Phalaropus fulicarius | Ou Psittirostra psittacea | 1 | 1 | 0 |
| Red-necked Phalarope Phalaropus lobatus | Common Sandpiper Actitis hypoleucos | 1 | 1 | 0 |
| Terek Sandpiper Xenus cinereus | Tropical Mockingbird Mimus gilvus | 1 | 0 | 1 |
| Common Sandpiper Actitis hypoleucos | Common Tern Sterna hirundo | 1 | 0 | 1 |
| Spotted Sandpiper Actitis macularius | Solitary Sandpiper Tringa solitaria | 1 | 0 | 1 |
| Green Sandpiper Tringa ochropus | Wandering Tattler Tringa incana | 1 | 0 | 1 |
| Green Sandpiper Tringa ochropus | Virginia's Warbler Leiothlypis virginiae | 1 | 1 | 0 |
| Solitary Sandpiper Tringa solitaria | Marsh Sandpiper Tringa stagnatilis | 1 | 1 | 0 |
| Wandering Tattler Tringa incana | Willet Tringa semipalmata | 1 | 1 | 0 |
| Wandering Tattler Tringa incana | Buff-bellied Pipit Anthus rubescens | 1 | 0 | 1 |
| Marsh Sandpiper Tringa stagnatilis | Lesser Yellowlegs Tringa flavipes | 1 | 1 | 0 |
| Marsh Sandpiper Tringa stagnatilis | Willet Tringa semipalmata | 1 | 1 | 0 |
| Marsh Sandpiper Tringa stagnatilis | Little Stint Calidris minuta | 1 | 0 | 1 |
| Wood Sandpiper Tringa glareola | Wood Stork Mycteria americana | 1 | 0 | 1 |
| Wood Sandpiper Tringa glareola | Steller's Jay Cyanocitta stelleri | 1 | 0 | 1 |
| Lesser Yellowlegs Tringa flavipes | Greater Yellowlegs Tringa melanoleuca | 1 | 1 | 0 |
| Willet Tringa semipalmata | Franklin's Gull Leucophaeus pipixcan | 1 | 1 | 0 |
| Willet Tringa semipalmata | Roseate Tern Sterna dougallii | 1 | 1 | 0 |
| Willet Tringa semipalmata | Snail Kite Rostrhamus sociabilis | 1 | 0 | 1 |
| Spotted Redshank Tringa erythropus | Ruddy Turnstone Arenaria interpres | 1 | 1 | 0 |
| Common Greenshank Tringa nebularia | Chinese Pond Heron Ardeola bacchus | 1 | 1 | 0 |
| Common Greenshank Tringa nebularia | Ringed Kingfisher Megaceryle torquata | 1 | 1 | 0 |
| Greater Yellowlegs Tringa melanoleuca | Ruddy Turnstone Arenaria interpres | 1 | 0 | 1 |
| Greater Yellowlegs Tringa melanoleuca | Great Cormorant Phalacrocorax carbo | 1 | 0 | 1 |
| Ruddy Turnstone Arenaria interpres | Black-tailed Gull Larus crassirostris | 1 | 1 | 0 |
| Ruddy Turnstone Arenaria interpres | Northern Beardless-Tyrannulet Camptostoma imberbe | 1 | 0 | 1 |
| Black Turnstone Arenaria melanocephala | Arctic Redpoll Acanthis hornemanni | 1 | 1 | 0 |
| Great Knot Calidris tenuirostris | Short-billed Gull Larus brachyrhynchus | 1 | 1 | 0 |
| Red Knot Calidris canutus | Ruff Calidris pugnax | 1 | 0 | 1 |
| Red Knot Calidris canutus | Sand Martin Riparia riparia | 1 | 1 | 0 |
| Red Knot Calidris canutus | Black-capped Gnatcatcher Polioptila nigriceps | 1 | 1 | 0 |
| Surfbird Calidris virgata | Ruff Calidris pugnax | 1 | 1 | 0 |
| Ruff Calidris pugnax | Stilt Sandpiper Calidris himantopus | 1 | 1 | 0 |
| Ruff Calidris pugnax | Loggerhead Shrike Lanius ludovicianus | 1 | 1 | 0 |
| Sharp-tailed Sandpiper Calidris acuminata | Elegant Tern Thalasseus elegans | 1 | 1 | 0 |
| Curlew Sandpiper Calidris ferruginea | Stilt Sandpiper Calidris himantopus | 1 | 0 | 1 |
| Temminck's Stint Calidris temminckii | Dunlin Calidris alpina | 1 | 1 | 0 |
| Temminck's Stint Calidris temminckii | Whiskered Tern Chlidonias hybrida | 1 | 1 | 0 |
| Temminck's Stint Calidris temminckii | Cory's Shearwater Calonectris diomedea | 1 | 1 | 0 |
| Temminck's Stint Calidris temminckii | Northern Flicker Colaptes auratus | 1 | 1 | 0 |
| Spoon-billed Sandpiper Calidris pygmaea | Buff-breasted Sandpiper Calidris subruficollis | 1 | 0 | 1 |
| Spoon-billed Sandpiper Calidris pygmaea | Grey-crowned Yellowthroat Geothlypis poliocephala | 1 | 0 | 1 |
| Sanderling Calidris alba | Purple Sandpiper Calidris maritima | 1 | 0 | 1 |
| Sanderling Calidris alba | Rock Sandpiper Calidris ptilocnemis | 1 | 1 | 0 |
| Sanderling Calidris alba | Little Stint Calidris minuta | 1 | 0 | 1 |
| Sanderling Calidris alba | Philadelphia Vireo Vireo philadelphicus | 1 | 0 | 1 |
| Sanderling Calidris alba | Kirtland's Warbler Setophaga kirtlandii | 1 | 1 | 0 |
| Rock Sandpiper Calidris ptilocnemis | White-rumped Sandpiper Calidris fuscicollis | 1 | 0 | 1 |
| Rock Sandpiper Calidris ptilocnemis | Least Storm-Petrel Hydrobates microsoma | 1 | 0 | 1 |
| Baird's Sandpiper Calidris bairdii | Least Sandpiper Calidris minutilla | 1 | 1 | 0 |
| Baird's Sandpiper Calidris bairdii | Pectoral Sandpiper Calidris melanotos | 1 | 1 | 0 |
| Baird's Sandpiper Calidris bairdii | Brown-capped Rosy-Finch Leucosticte australis | 1 | 1 | 0 |
| White-rumped Sandpiper Calidris fuscicollis | Pectoral Sandpiper Calidris melanotos | 1 | 1 | 0 |
| Least Sandpiper Calidris minutilla | Semipalmated Sandpiper Calidris pusilla | 1 | 0 | 1 |
| Pectoral Sandpiper Calidris melanotos | Western Sandpiper Calidris mauri | 1 | 1 | 0 |
| Oriental Pratincole Glareola maldivarum | Arctic Skua Stercorarius parasiticus | 1 | 1 | 0 |
| Oriental Pratincole Glareola maldivarum | White-winged Black Tern Chlidonias leucopterus | 1 | 0 | 1 |
| Long-tailed Skua Stercorarius longicaudus | Arctic Skua Stercorarius parasiticus | 1 | 0 | 1 |
| Long-tailed Skua Stercorarius longicaudus | Pomarine Skua Stercorarius pomarinus | 1 | 0 | 1 |
| Arctic Skua Stercorarius parasiticus | Pomarine Skua Stercorarius pomarinus | 1 | 0 | 1 |
| Arctic Skua Stercorarius parasiticus | Mottled Petrel Pterodroma inexpectata | 1 | 0 | 1 |
| Great Skua Stercorarius skua | Pine Siskin Spinus pinus | 1 | 1 | 0 |
| Rhinoceros Auklet Cerorhinca monocerata | Tufted Puffin Fratercula cirrhata | 1 | 1 | 0 |
| Rhinoceros Auklet Cerorhinca monocerata | Cassin's Auklet Ptychoramphus aleuticus | 1 | 0 | 1 |
| Rhinoceros Auklet Cerorhinca monocerata | Red-throated Diver Gavia stellata | 1 | 1 | 0 |
| Tufted Puffin Fratercula cirrhata | Atlantic Puffin Fratercula arctica | 1 | 0 | 1 |
| Horned Puffin Fratercula corniculata | Swallow-tailed Kite Elanoides forficatus | 1 | 1 | 0 |
| Cassin's Auklet Ptychoramphus aleuticus | Whiskered Auklet Aethia pygmaea | 1 | 0 | 1 |
| Cassin's Auklet Ptychoramphus aleuticus | Eurasian Goshawk Astur gentilis | 1 | 1 | 0 |
| Cassin's Auklet Ptychoramphus aleuticus | Pied Wheatear Oenanthe pleschanka | 1 | 1 | 0 |
| Least Auklet Aethia pusilla | Whiskered Auklet Aethia pygmaea | 1 | 1 | 0 |
| Least Auklet Aethia pusilla | Wedge-rumped Storm-Petrel Hydrobates tethys | 1 | 0 | 1 |
| Least Auklet Aethia pusilla | Sooty Shearwater Ardenna grisea | 1 | 1 | 0 |
| Whiskered Auklet Aethia pygmaea | Kittlitz's Murrelet Brachyramphus brevirostris | 1 | 1 | 0 |
| Crested Auklet Aethia cristatella | Kittlitz's Murrelet Brachyramphus brevirostris | 1 | 1 | 0 |
| Crested Auklet Aethia cristatella | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| Kittlitz's Murrelet Brachyramphus brevirostris | Black Guillemot Cepphus grylle | 1 | 0 | 1 |
| Kittlitz's Murrelet Brachyramphus brevirostris | Sooty Shearwater Ardenna grisea | 1 | 1 | 0 |
| Marbled Murrelet Brachyramphus marmoratus | Black Guillemot Cepphus grylle | 1 | 0 | 1 |
| Marbled Murrelet Brachyramphus marmoratus | Pigeon Guillemot Cepphus columba | 1 | 0 | 1 |
| Marbled Murrelet Brachyramphus marmoratus | Razorbill Alca torda | 1 | 1 | 0 |
| Marbled Murrelet Brachyramphus marmoratus | Aleutian Tern Onychoprion aleuticus | 1 | 0 | 1 |
| Marbled Murrelet Brachyramphus marmoratus | Puaiohi Myadestes palmeri | 1 | 1 | 0 |
| Pigeon Guillemot Cepphus columba | Common Guillemot Uria aalge | 1 | 1 | 0 |
| Pigeon Guillemot Cepphus columba | Laysan Albatross Phoebastria immutabilis | 1 | 1 | 0 |
| Pigeon Guillemot Cepphus columba | Greenish Elaenia Myiopagis viridicata | 1 | 1 | 0 |
| Razorbill Alca torda | Little Auk Alle alle | 1 | 1 | 0 |
| Little Auk Alle alle | Common Guillemot Uria aalge | 1 | 0 | 1 |
| Little Auk Alle alle | Black-capped Petrel Pterodroma hasitata | 1 | 1 | 0 |
| Little Auk Alle alle | Greenish Elaenia Myiopagis viridicata | 1 | 1 | 0 |
| Brünnich's Guillemot Uria lomvia | Ancient Murrelet Synthliboramphus antiquus | 1 | 1 | 0 |
| Common Guillemot Uria aalge | Clark's Nutcracker Nucifraga columbiana | 1 | 0 | 1 |
| Ancient Murrelet Synthliboramphus antiquus | Kelp Gull Larus dominicanus | 1 | 1 | 0 |
| Scripps's Murrelet Synthliboramphus scrippsi | Bridled Tern Onychoprion anaethetus | 1 | 1 | 0 |
| Guadalupe Murrelet Synthliboramphus hypoleucus | Craveri's Murrelet Synthliboramphus craveri | 1 | 1 | 0 |
| Craveri's Murrelet Synthliboramphus craveri | Swallow-tailed Gull Creagrus furcatus | 1 | 1 | 0 |
| Craveri's Murrelet Synthliboramphus craveri | Ross's Gull Rhodostethia rosea | 1 | 1 | 0 |
| Craveri's Murrelet Synthliboramphus craveri | Altamira Oriole Icterus gularis | 1 | 1 | 0 |
| Ross's Gull Rhodostethia rosea | Black-legged Kittiwake Rissa tridactyla | 1 | 0 | 1 |
| Black-legged Kittiwake Rissa tridactyla | Red-legged Kittiwake Rissa brevirostris | 1 | 1 | 0 |
| Black-legged Kittiwake Rissa tridactyla | Sabine's Gull Xema sabini | 1 | 0 | 1 |
| Black-legged Kittiwake Rissa tridactyla | Tree Swallow Tachycineta bicolor | 1 | 0 | 1 |
| Black-legged Kittiwake Rissa tridactyla | Cliff Swallow Petrochelidon pyrrhonota | 1 | 0 | 1 |
| Black-legged Kittiwake Rissa tridactyla | American Robin Turdus migratorius | 1 | 0 | 1 |
| Black-legged Kittiwake Rissa tridactyla | Northern Wheatear Oenanthe oenanthe | 1 | 0 | 1 |
| Black-legged Kittiwake Rissa tridactyla | American Goldfinch Spinus tristis | 1 | 1 | 0 |
| Black-legged Kittiwake Rissa tridactyla | Lapland Bunting Calcarius lapponicus | 1 | 0 | 1 |
| Red-legged Kittiwake Rissa brevirostris | Herring Gull Larus argentatus | 1 | 1 | 0 |
| Bonaparte's Gull Chroicocephalus philadelphia | Laughing Gull Leucophaeus atricilla | 1 | 0 | 1 |
| Bonaparte's Gull Chroicocephalus philadelphia | Ring-billed Gull Larus delawarensis | 1 | 0 | 1 |
| Black-headed Gull Chroicocephalus ridibundus | Red-billed Tropicbird Phaethon aethereus | 1 | 1 | 0 |
| Black-headed Gull Chroicocephalus ridibundus | Scarlet Ibis Eudocimus ruber | 1 | 1 | 0 |
| Laughing Gull Leucophaeus atricilla | Belcher's Gull Larus belcheri | 1 | 1 | 0 |
| Pallas's Gull Ichthyaetus ichthyaetus | Belcher's Gull Larus belcheri | 1 | 1 | 0 |
| Black-tailed Gull Larus crassirostris | Heermann's Gull Larus heermanni | 1 | 1 | 0 |
| Heermann's Gull Larus heermanni | Ring-billed Gull Larus delawarensis | 1 | 1 | 0 |
| Short-billed Gull Larus brachyrhynchus | Yellow-bellied Flycatcher Empidonax flaviventris | 1 | 0 | 1 |
| Short-billed Gull Larus brachyrhynchus | Northern Rough-winged Swallow Stelgidopteryx serripennis | 1 | 0 | 1 |
| Yellow-footed Gull Larus livens | Yellow-legged Gull Larus michahellis | 1 | 0 | 1 |