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 |
|---|---|---|---|---|
| Versicoloured Emerald Chrysuronia versicolor | Gilded Hummingbird Hylocharis chrysura | 8 | 4 | 4 |
| Capped Heron Pilherodius pileatus | Whistling Heron Syrigma sibilatrix | 7 | 7 | 0 |
| Long-winged Harrier Circus buffoni | Cinereous Harrier Circus cinereus | 7 | 2 | 5 |
| White-banded Tanager Neothraupis fasciata | Hooded Tanager Nemosia pileata | 7 | 6 | 1 |
| Striped Cuckoo Tapera naevia | Pavonine Cuckoo Dromococcyx pavoninus | 6 | 4 | 2 |
| Rufous-thighed Kite Harpagus diodon | Plumbeous Kite Ictinia plumbea | 6 | 5 | 1 |
| Spot-backed Antshrike Hypoedaleus guttatus | Large-tailed Antshrike Mackenziaena leachii | 6 | 0 | 6 |
| Dusky-legged Guan Penelope obscura | Bare-faced Curassow Crax fasciolata | 5 | 4 | 1 |
| Pale-vented Pigeon Patagioenas cayennensis | Picazuro Pigeon Patagioenas picazuro | 5 | 5 | 0 |
| Blackish Rail Pardirallus nigricans | Plumbeous Rail Pardirallus sanguinolentus | 5 | 3 | 2 |
| Snail Kite Rostrhamus sociabilis | Mississippi Kite Ictinia mississippiensis | 5 | 4 | 1 |
| Crane Hawk Geranospiza caerulescens | Great Black Hawk Buteogallus urubitinga | 5 | 5 | 0 |
| Amazon Kingfisher Chloroceryle amazona | Green Kingfisher Chloroceryle americana | 5 | 3 | 2 |
| Chestnut-capped Foliage-gleaner Clibanornis rectirostris | White-eyed Foliage-gleaner Automolus leucophthalmus | 5 | 1 | 4 |
| Sharp-billed Canastero Asthenes pyrrholeuca | Olive Spinetail Cranioleuca obsoleta | 5 | 4 | 1 |
| Piratic Flycatcher Legatus leucophaius | Variegated Flycatcher Empidonomus varius | 5 | 1 | 4 |
| Golden-rumped Euphonia Chlorophonia cyanocephala | Blue-naped Chlorophonia Chlorophonia cyanea | 5 | 3 | 2 |
| Chopi Blackbird Gnorimopsar chopi | Unicoloured Blackbird Agelasticus cyanopus | 5 | 1 | 4 |
| Ringed Warbling Finch Microspingus torquatus | Black-capped Warbling Finch Microspingus melanoleucus | 5 | 5 | 0 |
| White-rumped Tanager Cypsnagra hirundinacea | Black-and-rufous Warbling Finch Poospiza nigrorufa | 5 | 5 | 0 |
| Lesser Grass-Finch Emberizoides ypiranganus | Great Pampa-Finch Embernagra platensis | 5 | 2 | 3 |
| Double-collared Seedeater Sporophila caerulescens | Plumbeous Seedeater Sporophila plumbea | 5 | 5 | 0 |
| Brushland Tinamou Nothoprocta cinerascens | White-bellied Nothura Nothura boraquira | 4 | 3 | 1 |
| White-cheeked Pintail Anas bahamensis | Rosy-billed Pochard Netta peposaca | 4 | 4 | 0 |
| Greater Ani Crotophaga major | Smooth-billed Ani Crotophaga ani | 4 | 3 | 1 |
| Pheasant Cuckoo Dromococcyx phasianellus | Pavonine Cuckoo Dromococcyx pavoninus | 4 | 1 | 3 |
| Nacunda Nighthawk Chordeiles nacunda | Short-tailed Nighthawk Lurocalis semitorquatus | 4 | 1 | 3 |
| Planalto Hermit Phaethornis pretrei | Scale-throated Hermit Phaethornis eurynome | 4 | 1 | 3 |
| Fork-tailed Woodnymph Thalurania furcata | Swallow-tailed Hummingbird Eupetomena macroura | 4 | 0 | 4 |
| Plumbeous Rail Pardirallus sanguinolentus | Ash-throated Crake Mustelirallus albicollis | 4 | 0 | 4 |
| Grey-headed Kite Leptodon cayanensis | Black-and-white Hawk-Eagle Spizaetus melanoleucus | 4 | 1 | 3 |
| Great Black Hawk Buteogallus urubitinga | Chaco Eagle Buteogallus coronatus | 4 | 4 | 0 |
| Chaco Owl Strix chacoensis | Striped Owl Asio clamator | 4 | 2 | 2 |
| Buff-bellied Puffbird Notharchus swainsoni | White-eared Puffbird Nystalus chacuru | 4 | 4 | 0 |
| Great Antshrike Taraba major | Barred Antshrike Thamnophilus doliatus | 4 | 0 | 4 |
| Collared Crescentchest Melanopareia torquata | Olive-crowned Crescentchest Melanopareia maximiliani | 4 | 1 | 3 |
| Variegated Antpitta Grallaria varia | Speckle-breasted Antpitta Cryptopezus nattereri | 4 | 3 | 1 |
| Olivaceous Woodcreeper Sittasomus griseicapillus | Plain-winged Woodcreeper Dendrocincla turdina | 4 | 2 | 2 |
| Sharp-tailed Streamcreeper Lochmias nematura | Wren-like Rushbird Phleocryptes melanops | 4 | 4 | 0 |
| Buff-browed Foliage-gleaner Syndactyla rufosuperciliata | Buff-fronted Foliage-gleaner Dendroma rufa | 4 | 0 | 4 |
| Rufous Cacholote Pseudoseisura unirufa | Brown Cacholote Pseudoseisura lophotes | 4 | 2 | 2 |
| Large Elaenia Elaenia spectabilis | Lesser Elaenia Elaenia chiriquensis | 4 | 3 | 1 |
| Plain Tyrannulet Inezia inornata | Euler's Flycatcher Lathrotriccus euleri | 4 | 3 | 1 |
| Social Flycatcher Myiozetetes similis | Three-striped Flycatcher Conopias trivirgatus | 4 | 1 | 3 |
| Curl-crested Jay Cyanocorax cristatellus | Plush-crested Jay Cyanocorax chrysops | 4 | 0 | 4 |
| Yellowish Pipit Anthus chii | Hellmayr's Pipit Anthus hellmayri | 4 | 3 | 1 |
| Crested Oropendola Psarocolius decumanus | Red-rumped Cacique Cacicus haemorrhous | 4 | 4 | 0 |
| Screaming Cowbird Molothrus rufoaxillaris | Shiny Cowbird Molothrus bonariensis | 4 | 4 | 0 |
| Blackish-blue Seedeater Amaurospiza moesta | Glaucous-blue Grosbeak Cyanoloxia glaucocaerulea | 4 | 2 | 2 |
| Solitary Tinamou Tinamus solitarius | Brown Tinamou Crypturellus obsoletus | 3 | 3 | 0 |
| Undulated Tinamou Crypturellus undulatus | Tataupa Tinamou Crypturellus tataupa | 3 | 0 | 3 |
| Brushland Tinamou Nothoprocta cinerascens | Spotted Nothura Nothura maculosa | 3 | 1 | 2 |
| Cinnamon Teal Spatula cyanoptera | Red Shoveler Spatula platalea | 3 | 3 | 0 |
| Chaco Chachalaca Ortalis canicollis | Rusty-margined Guan Penelope superciliaris | 3 | 1 | 2 |
| Spot-winged Pigeon Patagioenas maculosa | Ruddy Ground Dove Columbina talpacoti | 3 | 0 | 3 |
| Nacunda Nighthawk Chordeiles nacunda | Common Nighthawk Chordeiles minor | 3 | 3 | 0 |
| Short-tailed Nighthawk Lurocalis semitorquatus | Band-winged Nightjar Systellura longirostris | 3 | 2 | 1 |
| Short-tailed Nighthawk Lurocalis semitorquatus | Band-tailed Nighthawk Nyctiprogne leucopyga | 3 | 0 | 3 |
| Band-winged Nightjar Systellura longirostris | Common Pauraque Nyctidromus albicollis | 3 | 1 | 2 |
| Little Nightjar Setopagis parvula | Spot-tailed Nightjar Antiurus maculicaudus | 3 | 0 | 3 |
| Ocellated Poorwill Nyctiphrynus ocellatus | Rufous Nightjar Antrostomus rufus | 3 | 2 | 1 |
| Great Dusky Swift Cypseloides senex | Grey-rumped Swift Chaetura cinereiventris | 3 | 1 | 2 |
| Giant Wood-Rail Aramides ypecaha | Grey-cowled Wood-Rail Aramides cajaneus | 3 | 2 | 1 |
| Giant Snipe Gallinago undulata | Pantanal Snipe Gallinago paraguaiae | 3 | 2 | 1 |
| Stripe-backed Bittern Botaurus involucris | Least Bittern Botaurus exilis | 3 | 3 | 0 |
| Tropical Screech-Owl Megascops choliba | Black-capped Screech-Owl Megascops atricapilla | 3 | 1 | 2 |
| Spectacled Owl Pulsatrix perspicillata | Tawny-browed Owl Pulsatrix koeniswaldiana | 3 | 0 | 3 |
| Surucua Trogon Trogon surrucura | Atlantic Black-throated Trogon Trogon chrysochloros | 3 | 3 | 0 |
| White-spotted Woodpecker Veniliornis spilogaster | Checkered Woodpecker Veniliornis mixtus | 3 | 3 | 0 |
| Lineated Woodpecker Dryocopus lineatus | Helmeted Woodpecker Celeus galeatus | 3 | 0 | 3 |
| Cobalt-rumped Parrotlet Forpus xanthopterygius | Blaze-winged Parakeet Pyrrhura devillei | 3 | 2 | 1 |
| Blaze-winged Parakeet Pyrrhura devillei | Green-cheeked Parakeet Pyrrhura molinae | 3 | 3 | 0 |
| Blue-winged Macaw Primolius maracana | Red-and-green Macaw Ara chloropterus | 3 | 1 | 2 |
| Giant Antshrike Batara cinerea | Great Antshrike Taraba major | 3 | 3 | 0 |
| Rufous-capped Antshrike Thamnophilus ruficapillus | Rufous-winged Antshrike Thamnophilus torquatus | 3 | 3 | 0 |
| Variable Antshrike Thamnophilus caerulescens | Black-capped Antwren Herpsilochmus atricapillus | 3 | 3 | 0 |
| Dusky-tailed Antbird Drymophila malura | Streak-capped Antwren Terenura maculata | 3 | 3 | 0 |
| Rusty-backed Antwren Formicivora rufa | Streak-capped Antwren Terenura maculata | 3 | 0 | 3 |
| Speckle-breasted Antpitta Cryptopezus nattereri | Short-tailed Antthrush Chamaeza campanisona | 3 | 1 | 2 |
| Lesser Woodcreeper Xiphorhynchus fuscus | Narrow-billed Woodcreeper Lepidocolaptes angustirostris | 3 | 3 | 0 |
| Narrow-billed Woodcreeper Lepidocolaptes angustirostris | Scalloped Woodcreeper Lepidocolaptes falcinellus | 3 | 0 | 3 |
| Ochre-breasted Foliage-gleaner Anabacerthia lichtensteini | Buff-browed Foliage-gleaner Syndactyla rufosuperciliata | 3 | 3 | 0 |
| Buff-browed Foliage-gleaner Syndactyla rufosuperciliata | Russet-mantled Foliage-gleaner Syndactyla dimidiata | 3 | 0 | 3 |
| White-eyed Foliage-gleaner Automolus leucophthalmus | Rufous-fronted Thornbird Phacellodomus rufifrons | 3 | 3 | 0 |
| Sharp-billed Canastero Asthenes pyrrholeuca | Stripe-crowned Spinetail Cranioleuca pyrrhophia | 3 | 0 | 3 |
| Rufous Cacholote Pseudoseisura unirufa | Yellow-chinned Spinetail Certhiaxis cinnamomeus | 3 | 0 | 3 |
| Yellow-chinned Spinetail Certhiaxis cinnamomeus | Chotoy Spinetail Schoeniophylax phryganophilus | 3 | 0 | 3 |
| Grey-bellied Spinetail Synallaxis cinerascens | Cinereous-breasted Spinetail Synallaxis hypospodia | 3 | 3 | 0 |
| Cinereous-breasted Spinetail Synallaxis hypospodia | Spix's Spinetail Synallaxis spixi | 3 | 1 | 2 |
| White-naped Xenopsaris Xenopsaris albinucha | White-winged Becard Pachyramphus polychopterus | 3 | 3 | 0 |
| Chestnut-crowned Becard Pachyramphus castaneus | Crested Becard Pachyramphus validus | 3 | 0 | 3 |
| White-throated Spadebill Platyrinchus mystaceus | Sepia-capped Flycatcher Leptopogon amaurocephalus | 3 | 3 | 0 |
| Yellow-olive Flatbill Tolmomyias sulphurescens | Suiriri Flycatcher Suiriri suiriri | 3 | 3 | 0 |
| Subtropical Doradito Pseudocolopteryx acutipennis | Dinelli's Doradito Pseudocolopteryx dinelliana | 3 | 2 | 1 |
| Subtropical Doradito Pseudocolopteryx acutipennis | Warbling Doradito Pseudocolopteryx flaviventris | 3 | 1 | 2 |
| Grey-headed Elaenia Myiopagis caniceps | Small-headed Elaenia Elaenia sordida | 3 | 1 | 2 |
| Yellow-bellied Elaenia Elaenia flavogaster | Large Elaenia Elaenia spectabilis | 3 | 1 | 2 |
| White-crested Elaenia Elaenia albiceps | White-crested Tyrannulet Serpophaga subcristata | 3 | 2 | 1 |
| Sooty Tyrannulet Serpophaga nigricans | Straneck's Tyrannulet Serpophaga griseicapilla | 3 | 3 | 0 |
| Reiser's Tyrannulet Phyllomyias reiseri | Plain Tyrannulet Inezia inornata | 3 | 3 | 0 |
| Alder Flycatcher Empidonax alnorum | Southern Scrub-Flycatcher Sublegatus modestus | 3 | 0 | 3 |
| Austral Negrito Lessonia rufa | Cinereous Tyrant Knipolegus striaticeps | 3 | 0 | 3 |
| White-winged Black-Tyrant Knipolegus aterrimus | Hudson's Black-Tyrant Knipolegus hudsoni | 3 | 1 | 2 |
| Lesser Shrike-Tyrant Agriornis murinus | Shear-tailed Grey Tyrant Muscipipra vetula | 3 | 3 | 0 |
| Streamer-tailed Tyrant Gubernetes yetapa | Strange-tailed Tyrant Alectrurus risora | 3 | 0 | 3 |
| Streaked Flycatcher Myiodynastes maculatus | Piratic Flycatcher Legatus leucophaius | 3 | 2 | 1 |
| White-winged Swallow Tachycineta albiventer | Chilean Swallow Tachycineta leucopyga | 3 | 2 | 1 |
| Purple Martin Progne subis | Southern Martin Progne elegans | 3 | 0 | 3 |
| Chaco Sparrow Rhynchospiza strigiceps | Grassland Sparrow Ammodramus humeralis | 3 | 2 | 1 |
| White-browed Warbler Myiothlypis leucoblephara | Riverbank Warbler Myiothlypis rivularis | 3 | 2 | 1 |
| Hepatic Tanager Piranga flava | Red-crowned Ant-Tanager Habia rubica | 3 | 1 | 2 |
| Red-crested Cardinal Paroaria coronata | Yellow-billed Cardinal Paroaria capitata | 3 | 0 | 3 |
| Black-capped Warbling Finch Microspingus melanoleucus | Black-goggled Tanager Trichothraupis melanops | 3 | 3 | 0 |
| Fawn-breasted Tanager Pipraeidea melanonota | Blue-and-yellow Tanager Rauenia bonariensis | 3 | 3 | 0 |
| Sayaca Tanager Thraupis sayaca | Palm Tanager Thraupis palmarum | 3 | 2 | 1 |
| Swallow Tanager Tersina viridis | Blue Dacnis Dacnis cayana | 3 | 3 | 0 |
| Swallow Tanager Tersina viridis | Guira Tanager Hemithraupis guira | 3 | 2 | 1 |
| Blue Dacnis Dacnis cayana | Chestnut-vented Conebill Conirostrum speciosum | 3 | 0 | 3 |
| Grassland Yellow-Finch Sicalis luteola | Lesser Grass-Finch Emberizoides ypiranganus | 3 | 2 | 1 |
| Lined Seedeater Sporophila lineola | White-bellied Seedeater Sporophila leucoptera | 3 | 3 | 0 |
| Copper Seedeater Sporophila bouvreuil | Tawny-bellied Seedeater Sporophila hypoxantha | 3 | 1 | 2 |
| Pearly-bellied Seedeater Sporophila pileata | Tawny-bellied Seedeater Sporophila hypoxantha | 3 | 3 | 0 |
| Tawny-bellied Seedeater Sporophila hypoxantha | Marsh Seedeater Sporophila palustris | 3 | 0 | 3 |
| Many-coloured Chaco Finch Saltatricula multicolor | Black-throated Saltator Saltatricula atricollis | 3 | 3 | 0 |
| Black-throated Saltator Saltatricula atricollis | Golden-billed Saltator Saltator aurantiirostris | 3 | 2 | 1 |
| Brown Tinamou Crypturellus obsoletus | Tataupa Tinamou Crypturellus tataupa | 2 | 2 | 0 |
| Solitary Tinamou Tinamus solitarius | Undulated Tinamou Crypturellus undulatus | 2 | 0 | 2 |
| Red-winged Tinamou Rhynchotus rufescens | Brushland Tinamou Nothoprocta cinerascens | 2 | 2 | 0 |
| Brazilian Teal Amazonetta brasiliensis | Silver Teal Spatula versicolor | 2 | 0 | 2 |
| Chaco Chachalaca Ortalis canicollis | Dusky-legged Guan Penelope obscura | 2 | 1 | 1 |
| Least Grebe Tachybaptus dominicus | Pied-billed Grebe Podilymbus podiceps | 2 | 0 | 2 |
| Plain-breasted Ground Dove Columbina minuta | Ruddy Ground Dove Columbina talpacoti | 2 | 2 | 0 |
| Violaceous Quail-Dove Geotrygon violacea | Grey-fronted Dove Leptotila rufaxilla | 2 | 0 | 2 |
| Sickle-winged Nightjar Eleothreptus anomalus | Little Nightjar Setopagis parvula | 2 | 2 | 0 |
| Sickle-winged Nightjar Eleothreptus anomalus | Spot-tailed Nightjar Antiurus maculicaudus | 2 | 1 | 1 |
| Spot-tailed Nightjar Antiurus maculicaudus | Ocellated Poorwill Nyctiphrynus ocellatus | 2 | 2 | 0 |
| Sooty Swift Cypseloides fumigatus | Great Dusky Swift Cypseloides senex | 2 | 1 | 1 |
| White-collared Swift Streptoprocne zonaris | Sick's Swift Chaetura meridionalis | 2 | 1 | 1 |
| Scale-throated Hermit Phaethornis eurynome | White-tailed Goldenthroat Polytmus guainumbi | 2 | 1 | 1 |
| Planalto Hermit Phaethornis pretrei | White-tailed Goldenthroat Polytmus guainumbi | 2 | 0 | 2 |
| Blue-tufted Starthroat Heliomaster furcifer | Purple-crowned Plovercrest Stephanoxis loddigesii | 2 | 0 | 2 |
| Violet-capped Woodnymph Thalurania glaucopis | Swallow-tailed Hummingbird Eupetomena macroura | 2 | 1 | 1 |
| Versicoloured Emerald Chrysuronia versicolor | White-throated Hummingbird Leucochloris albicollis | 2 | 2 | 0 |
| Ash-throated Crake Mustelirallus albicollis | Grey-cowled Wood-Rail Aramides cajaneus | 2 | 0 | 2 |
| Spotted Sandpiper Actitis macularius | Greater Yellowlegs Tringa melanoleuca | 2 | 2 | 0 |
| Lesser Yellowlegs Tringa flavipes | Greater Yellowlegs Tringa melanoleuca | 2 | 1 | 1 |
| Sanderling Calidris alba | White-rumped Sandpiper Calidris fuscicollis | 2 | 1 | 1 |
| Baird's Sandpiper Calidris bairdii | White-rumped Sandpiper Calidris fuscicollis | 2 | 0 | 2 |
| Yellow-billed Tern Sternula superciliaris | Large-billed Tern Phaetusa simplex | 2 | 2 | 0 |
| Rufescent Tiger-Heron Tigrisoma lineatum | Pinnated Bittern Botaurus pinnatus | 2 | 0 | 2 |
| White-faced Ibis Plegadis chihi | Bare-faced Ibis Phimosus infuscatus | 2 | 2 | 0 |
| American Black Vulture Coragyps atratus | Turkey Vulture Cathartes aura | 2 | 0 | 2 |
| Roadside Hawk Rupornis magnirostris | Harris's Hawk Parabuteo unicinctus | 2 | 2 | 0 |
| Roadside Hawk Rupornis magnirostris | White-tailed Hawk Geranoaetus albicaudatus | 2 | 0 | 2 |
| Short-tailed Hawk Buteo brachyurus | Swainson's Hawk Buteo swainsoni | 2 | 1 | 1 |
| Ferruginous Pygmy-Owl Glaucidium brasilianum | Rusty-barred Owl Strix hylophila | 2 | 2 | 0 |
| Mottled Owl Strix virgata | Striped Owl Asio clamator | 2 | 2 | 0 |
| Rusty-barred Owl Strix hylophila | Short-eared Owl Asio flammeus | 2 | 2 | 0 |
| White-barred Piculet Picumnus cirratus | Ochre-collared Piculet Picumnus temminckii | 2 | 0 | 2 |
| Robust Woodpecker Campephilus robustus | Crimson-crested Woodpecker Campephilus melanoleucos | 2 | 2 | 0 |
| Lineated Woodpecker Dryocopus lineatus | Black-bodied Woodpecker Dryocopus schulzii | 2 | 0 | 2 |
| Pale-crested Woodpecker Celeus lugubris | Blond-crested Woodpecker Celeus flavescens | 2 | 0 | 2 |
| Green-barred Woodpecker Colaptes melanochloros | Campo Flicker Colaptes campestris | 2 | 2 | 0 |
| Collared Forest-Falcon Micrastur semitorquatus | Barred Forest-Falcon Micrastur ruficollis | 2 | 2 | 0 |
| Collared Forest-Falcon Micrastur semitorquatus | Spot-winged Falconet Spiziapteryx circumcincta | 2 | 2 | 0 |
| Aplomado Falcon Falco femoralis | Bat Falcon Falco rufigularis | 2 | 1 | 1 |
| Monk Parakeet Myiopsitta monachus | Pileated Parrot Pionopsitta pileata | 2 | 0 | 2 |
| Scaly-headed Parrot Pionus maximiliani | Vinaceous-breasted Amazon Amazona vinacea | 2 | 2 | 0 |
| Yellow-faced Parrot Alipiopsitta xanthops | Turquoise-fronted Amazon Amazona aestiva | 2 | 0 | 2 |
| Green-cheeked Parakeet Pyrrhura molinae | Nanday Parakeet Aratinga nenday | 2 | 2 | 0 |
| Peach-fronted Parakeet Eupsittula aurea | Blue-winged Macaw Primolius maracana | 2 | 0 | 2 |
| Red-and-green Macaw Ara chloropterus | White-eyed Parakeet Psittacara leucophthalmus | 2 | 0 | 2 |
| Rufous-capped Antshrike Thamnophilus ruficapillus | Bolivian Slaty-Antshrike Thamnophilus sticturus | 2 | 2 | 0 |
| Rufous-winged Antshrike Thamnophilus torquatus | Bolivian Slaty-Antshrike Thamnophilus sticturus | 2 | 2 | 0 |
| Bolivian Slaty-Antshrike Thamnophilus sticturus | Plain Antvireo Dysithamnus mentalis | 2 | 0 | 2 |
| Stripe-backed Antbird Myrmorchilus strigilatus | Rufous-margined Antwren Herpsilochmus rufimarginatus | 2 | 2 | 0 |
| Rufous-margined Antwren Herpsilochmus rufimarginatus | Rusty-backed Antwren Formicivora rufa | 2 | 0 | 2 |
| Black-banded Woodcreeper Dendrocolaptes picumnus | White-throated Woodcreeper Xiphocolaptes albicollis | 2 | 1 | 1 |
| Black-banded Woodcreeper Dendrocolaptes picumnus | Planalto Woodcreeper Dendrocolaptes platyrostris | 2 | 0 | 2 |
| Planalto Woodcreeper Dendrocolaptes platyrostris | Great Rufous Woodcreeper Xiphocolaptes major | 2 | 1 | 1 |
| Scalloped Woodcreeper Lepidocolaptes falcinellus | Chaco Earthcreeper Tarphonomus certhioides | 2 | 0 | 2 |
| Pale-legged Hornero Furnarius leucopus | Rufous Hornero Furnarius rufus | 2 | 1 | 1 |
| Ochre-breasted Foliage-gleaner Anabacerthia lichtensteini | Russet-mantled Foliage-gleaner Syndactyla dimidiata | 2 | 0 | 2 |
| Chestnut-capped Foliage-gleaner Clibanornis rectirostris | Rufous-fronted Thornbird Phacellodomus rufifrons | 2 | 0 | 2 |
| Rufous-fronted Thornbird Phacellodomus rufifrons | Little Thornbird Phacellodomus sibilatrix | 2 | 1 | 1 |
| Rufous-fronted Thornbird Phacellodomus rufifrons | Greater Thornbird Phacellodomus ruber | 2 | 1 | 1 |
| Little Thornbird Phacellodomus sibilatrix | Greater Thornbird Phacellodomus ruber | 2 | 1 | 1 |
| Firewood-gatherer Anumbius annumbi | Lark-like Brushrunner Coryphistera alaudina | 2 | 1 | 1 |
| Short-billed Canastero Asthenes baeri | Stripe-crowned Spinetail Cranioleuca pyrrhophia | 2 | 0 | 2 |
| Brown Cacholote Pseudoseisura lophotes | Chotoy Spinetail Schoeniophylax phryganophilus | 2 | 2 | 0 |
| White-lored Spinetail Synallaxis albilora | Spix's Spinetail Synallaxis spixi | 2 | 2 | 0 |
| Rufous-capped Spinetail Synallaxis ruficapilla | Cinereous-breasted Spinetail Synallaxis hypospodia | 2 | 1 | 1 |
| Rufous-capped Spinetail Synallaxis ruficapilla | Spix's Spinetail Synallaxis spixi | 2 | 1 | 1 |
| Cinereous-breasted Spinetail Synallaxis hypospodia | Pale-breasted Spinetail Synallaxis albescens | 2 | 0 | 2 |
| Spix's Spinetail Synallaxis spixi | Pale-breasted Spinetail Synallaxis albescens | 2 | 0 | 2 |
| Swallow-tailed Manakin Chiroxiphia caudata | Band-tailed Manakin Pipra fasciicauda | 2 | 0 | 2 |
| Black-tailed Tityra Tityra cayana | Black-crowned Tityra Tityra inquisitor | 2 | 2 | 0 |
| Black-tailed Tityra Tityra cayana | Masked Tityra Tityra semifasciata | 2 | 2 | 0 |
| Black-crowned Tityra Tityra inquisitor | Masked Tityra Tityra semifasciata | 2 | 1 | 1 |
| Crested Becard Pachyramphus validus | White-throated Spadebill Platyrinchus mystaceus | 2 | 2 | 0 |
| Sepia-capped Flycatcher Leptopogon amaurocephalus | Southern Bristle-Tyrant Pogonotriccus eximius | 2 | 2 | 0 |
| Sepia-capped Flycatcher Leptopogon amaurocephalus | Sao Paulo Bristle-Tyrant Pogonotriccus paulista | 2 | 2 | 0 |
| Mottle-cheeked Tyrannulet Phylloscartes ventralis | Eared Pygmy-Tyrant Myiornis auricularis | 2 | 2 | 0 |
| Mottle-cheeked Tyrannulet Phylloscartes ventralis | Bay-ringed Tyrannulet Phylloscartes sylviolus | 2 | 0 | 2 |
| Southern Beardless-Tyrannulet Camptostoma obsoletum | Suiriri Flycatcher Suiriri suiriri | 2 | 1 | 1 |
| Southern Beardless-Tyrannulet Camptostoma obsoletum | Southern Mouse-coloured Tyrannulet Nesotriccus murinus | 2 | 1 | 1 |
| Suiriri Flycatcher Suiriri suiriri | Yellow Tyrannulet Capsiempis flaveola | 2 | 1 | 1 |
| Crested Doradito Pseudocolopteryx sclateri | Subtropical Doradito Pseudocolopteryx acutipennis | 2 | 0 | 2 |
| Dinelli's Doradito Pseudocolopteryx dinelliana | Warbling Doradito Pseudocolopteryx flaviventris | 2 | 2 | 0 |
| Dinelli's Doradito Pseudocolopteryx dinelliana | Greenish Elaenia Myiopagis viridicata | 2 | 2 | 0 |
| Small-headed Elaenia Elaenia sordida | Yellow-bellied Elaenia Elaenia flavogaster | 2 | 1 | 1 |
| Small-headed Elaenia Elaenia sordida | Large Elaenia Elaenia spectabilis | 2 | 2 | 0 |
| White-crested Tyrannulet Serpophaga subcristata | Straneck's Tyrannulet Serpophaga griseicapilla | 2 | 2 | 0 |
| Straneck's Tyrannulet Serpophaga griseicapilla | Rough-legged Tyrannulet Acrochordopus burmeisteri | 2 | 0 | 2 |
| Reiser's Tyrannulet Phyllomyias reiseri | Greater Wagtail-Tyrant Stigmatura budytoides | 2 | 0 | 2 |
| Bran-coloured Flycatcher Myiophobus fasciatus | Euler's Flycatcher Lathrotriccus euleri | 2 | 1 | 1 |
| Euler's Flycatcher Lathrotriccus euleri | Southern Tropical Pewee Contopus cinereus | 2 | 1 | 1 |
| Euler's Flycatcher Lathrotriccus euleri | Alder Flycatcher Empidonax alnorum | 2 | 2 | 0 |
| Southern Tropical Pewee Contopus cinereus | Alder Flycatcher Empidonax alnorum | 2 | 1 | 1 |
| Euler's Flycatcher Lathrotriccus euleri | Fuscous Flycatcher Cnemotriccus fuscatus | 2 | 0 | 2 |
| Southern Tropical Pewee Contopus cinereus | Fuscous Flycatcher Cnemotriccus fuscatus | 2 | 0 | 2 |
| Grey Monjita Nengetus cinereus | Grey-bellied Shrike-Tyrant Agriornis micropterus | 2 | 1 | 1 |
| Cock-tailed Tyrant Alectrurus tricolor | Sibilant Sirystes Sirystes sibilator | 2 | 2 | 0 |
| Short-crested Flycatcher Myiarchus ferox | Brown-crested Flycatcher Myiarchus tyrannulus | 2 | 1 | 1 |
| Short-crested Flycatcher Myiarchus ferox | Cattle Tyrant Machetornis rixosa | 2 | 1 | 1 |
| Great Kiskadee Pitangus sulphuratus | Boat-billed Flycatcher Megarynchus pitangua | 2 | 1 | 1 |
| Great Kiskadee Pitangus sulphuratus | Social Flycatcher Myiozetetes similis | 2 | 2 | 0 |
| Variegated Flycatcher Empidonomus varius | Crowned Slaty Flycatcher Empidonomus aurantioatrocristatus | 2 | 0 | 2 |
| White-rumped Swallow Tachycineta leucorrhoa | Chilean Swallow Tachycineta leucopyga | 2 | 2 | 0 |
| Grey-breasted Martin Progne chalybea | Southern Martin Progne elegans | 2 | 2 | 0 |
| Southern Rough-winged Swallow Stelgidopteryx ruficollis | Tawny-headed Swallow Alopochelidon fucata | 2 | 1 | 1 |
| Masked Gnatcatcher Polioptila dumicola | Creamy-bellied Gnatcatcher Polioptila lactea | 2 | 1 | 1 |
| White-necked Thrush Turdus albicollis | Creamy-bellied Thrush Turdus amaurochalinus | 2 | 2 | 0 |
| Yellowish Pipit Anthus chii | Ochre-breasted Pipit Anthus nattereri | 2 | 0 | 2 |
| Purple-throated Euphonia Euphonia chlorotica | Violaceous Euphonia Euphonia violacea | 2 | 2 | 0 |
| Purple-throated Euphonia Euphonia chlorotica | Chestnut-bellied Euphonia Euphonia pectoralis | 2 | 0 | 2 |
| Screaming Cowbird Molothrus rufoaxillaris | Giant Cowbird Molothrus oryzivorus | 2 | 1 | 1 |
| Flavescent Warbler Myiothlypis flaveola | Hepatic Tanager Piranga flava | 2 | 2 | 0 |
| Blackish-blue Seedeater Amaurospiza moesta | Ultramarine Grosbeak Cyanoloxia brissonii | 2 | 0 | 2 |
| Magpie Tanager Cissopis leverianus | White-banded Tanager Neothraupis fasciata | 2 | 0 | 2 |
| Guira Tanager Hemithraupis guira | Chestnut-vented Conebill Conirostrum speciosum | 2 | 0 | 2 |
| Wedge-tailed Grass-Finch Emberizoides herbicola | Lesser Grass-Finch Emberizoides ypiranganus | 2 | 0 | 2 |
| Great Pampa-Finch Embernagra platensis | Blue-black Grassquit Volatinia jacarina | 2 | 0 | 2 |
| Blue-black Grassquit Volatinia jacarina | Copper Seedeater Sporophila bouvreuil | 2 | 2 | 0 |
| White-bellied Seedeater Sporophila leucoptera | Pearly-bellied Seedeater Sporophila pileata | 2 | 2 | 0 |
| Marsh Seedeater Sporophila palustris | Chestnut-bellied Seed-Finch Sporophila angolensis | 2 | 2 | 0 |
| Rufous-rumped Seedeater Sporophila hypochroma | Chestnut Seedeater Sporophila cinnamomea | 2 | 2 | 0 |
| Chestnut-bellied Seed-Finch Sporophila angolensis | Rusty-collared Seedeater Sporophila collaris | 2 | 2 | 0 |
| Double-collared Seedeater Sporophila caerulescens | Rusty-collared Seedeater Sporophila collaris | 2 | 0 | 2 |
| Black-throated Saltator Saltatricula atricollis | Bluish-grey Saltator Saltator coerulescens | 2 | 0 | 2 |
| Bluish-grey Saltator Saltator coerulescens | Green-winged Saltator Saltator similis | 2 | 0 | 2 |
| Green-winged Saltator Saltator similis | Golden-billed Saltator Saltator aurantiirostris | 2 | 0 | 2 |
| Greater Rhea Rhea americana | Solitary Tinamou Tinamus solitarius | 1 | 0 | 1 |
| Brown Tinamou Crypturellus obsoletus | Undulated Tinamou Crypturellus undulatus | 1 | 0 | 1 |
| Brown Tinamou Crypturellus obsoletus | Small-billed Tinamou Crypturellus parvirostris | 1 | 0 | 1 |
| Undulated Tinamou Crypturellus undulatus | Small-billed Tinamou Crypturellus parvirostris | 1 | 0 | 1 |
| Small-billed Tinamou Crypturellus parvirostris | Red-winged Tinamou Rhynchotus rufescens | 1 | 1 | 0 |
| Tataupa Tinamou Crypturellus tataupa | Brushland Tinamou Nothoprocta cinerascens | 1 | 0 | 1 |
| White-bellied Nothura Nothura boraquira | Quebracho Crested-Tinamou Eudromia formosa | 1 | 1 | 0 |
| Spotted Nothura Nothura maculosa | Quebracho Crested-Tinamou Eudromia formosa | 1 | 0 | 1 |
| Coscoroba Swan Coscoroba coscoroba | Muscovy Duck Cairina moschata | 1 | 0 | 1 |
| Comb Duck Sarkidiornis sylvicola | Muscovy Duck Cairina moschata | 1 | 0 | 1 |
| Muscovy Duck Cairina moschata | Silver Teal Spatula versicolor | 1 | 1 | 0 |
| Ringed Teal Callonetta leucophrys | Brazilian Teal Amazonetta brasiliensis | 1 | 1 | 0 |
| Brazilian Teal Amazonetta brasiliensis | Cinnamon Teal Spatula cyanoptera | 1 | 1 | 0 |
| Spot-winged Pigeon Patagioenas maculosa | Plain-breasted Ground Dove Columbina minuta | 1 | 0 | 1 |
| Ruddy Ground Dove Columbina talpacoti | Picui Ground Dove Columbina picui | 1 | 0 | 1 |
| Scaled Dove Columbina squammata | Picui Ground Dove Columbina picui | 1 | 0 | 1 |
| Picui Ground Dove Columbina picui | Blue Ground Dove Claravis pretiosa | 1 | 1 | 0 |
| Ruddy Quail-Dove Geotrygon montana | Violaceous Quail-Dove Geotrygon violacea | 1 | 1 | 0 |
| White-tipped Dove Leptotila verreauxi | Grey-fronted Dove Leptotila rufaxilla | 1 | 1 | 0 |
| Grey-fronted Dove Leptotila rufaxilla | Guira Cuckoo Guira guira | 1 | 1 | 0 |
| Guira Cuckoo Guira guira | Striped Cuckoo Tapera naevia | 1 | 1 | 0 |
| Striped Cuckoo Tapera naevia | Pheasant Cuckoo Dromococcyx phasianellus | 1 | 1 | 0 |
| Yellow-billed Cuckoo Coccyzus americanus | Pearly-breasted Cuckoo Coccyzus euleri | 1 | 1 | 0 |
| Nacunda Nighthawk Chordeiles nacunda | Band-tailed Nighthawk Nyctiprogne leucopyga | 1 | 1 | 0 |
| Short-tailed Nighthawk Lurocalis semitorquatus | Common Pauraque Nyctidromus albicollis | 1 | 1 | 0 |
| Band-tailed Nighthawk Nyctiprogne leucopyga | Common Pauraque Nyctidromus albicollis | 1 | 1 | 0 |
| Common Pauraque Nyctidromus albicollis | White-winged Nightjar Eleothreptus candicans | 1 | 0 | 1 |
| White-winged Nightjar Eleothreptus candicans | Sickle-winged Nightjar Eleothreptus anomalus | 1 | 1 | 0 |
| White-winged Nightjar Eleothreptus candicans | Little Nightjar Setopagis parvula | 1 | 0 | 1 |
| Little Nightjar Setopagis parvula | Scissor-tailed Nightjar Hydropsalis torquata | 1 | 1 | 0 |
| Little Nightjar Setopagis parvula | Ocellated Poorwill Nyctiphrynus ocellatus | 1 | 1 | 0 |
| Spot-tailed Nightjar Antiurus maculicaudus | Rufous Nightjar Antrostomus rufus | 1 | 1 | 0 |
| Spot-tailed Nightjar Antiurus maculicaudus | Scissor-tailed Nightjar Hydropsalis torquata | 1 | 0 | 1 |
| Scissor-tailed Nightjar Hydropsalis torquata | Ocellated Poorwill Nyctiphrynus ocellatus | 1 | 0 | 1 |
| Ocellated Poorwill Nyctiphrynus ocellatus | Common Potoo Nyctibius griseus | 1 | 1 | 0 |
| Rufous Nightjar Antrostomus rufus | Common Potoo Nyctibius griseus | 1 | 1 | 0 |
| Rufous Nightjar Antrostomus rufus | Sooty Swift Cypseloides fumigatus | 1 | 1 | 0 |
| Great Dusky Swift Cypseloides senex | Sick's Swift Chaetura meridionalis | 1 | 1 | 0 |
| Grey-rumped Swift Chaetura cinereiventris | Sick's Swift Chaetura meridionalis | 1 | 1 | 0 |
| Grey-rumped Swift Chaetura cinereiventris | Black Jacobin Florisuga fusca | 1 | 1 | 0 |
| Black Jacobin Florisuga fusca | Scale-throated Hermit Phaethornis eurynome | 1 | 1 | 0 |
| Black Jacobin Florisuga fusca | White-tailed Goldenthroat Polytmus guainumbi | 1 | 1 | 0 |
| White-tailed Goldenthroat Polytmus guainumbi | Blue-tufted Starthroat Heliomaster furcifer | 1 | 1 | 0 |
| White-tailed Goldenthroat Polytmus guainumbi | Glittering-bellied Emerald Chlorostilbon lucidus | 1 | 1 | 0 |
| Black-throated Mango Anthracothorax nigricollis | Purple-crowned Plovercrest Stephanoxis loddigesii | 1 | 1 | 0 |
| Purple-crowned Plovercrest Stephanoxis loddigesii | Violet-capped Woodnymph Thalurania glaucopis | 1 | 1 | 0 |
| Violet-capped Woodnymph Thalurania glaucopis | Fork-tailed Woodnymph Thalurania furcata | 1 | 1 | 0 |
| Spotted Rail Pardirallus maculatus | Blackish Rail Pardirallus nigricans | 1 | 1 | 0 |
| Blackish Rail Pardirallus nigricans | Giant Wood-Rail Aramides ypecaha | 1 | 1 | 0 |
| Grey-cowled Wood-Rail Aramides cajaneus | Slaty-breasted Wood-Rail Aramides saracura | 1 | 0 | 1 |
| Grey-cowled Wood-Rail Aramides cajaneus | Spot-flanked Gallinule Porphyriops melanops | 1 | 0 | 1 |
| Spot-flanked Gallinule Porphyriops melanops | American Moorhen Gallinula galeata | 1 | 1 | 0 |
| American Moorhen Gallinula galeata | Red-gartered Coot Fulica armillata | 1 | 0 | 1 |
| American Moorhen Gallinula galeata | White-winged Coot Fulica leucoptera | 1 | 0 | 1 |
| Azure Gallinule Porphyrio flavirostris | Grey-breasted Crake Laterallus exilis | 1 | 1 | 0 |
| Yellow-breasted Crake Laterallus flaviventer | Grey-breasted Crake Laterallus exilis | 1 | 1 | 0 |
| Rufous-sided Crake Laterallus melanophaius | Rufous-faced Crake Rufirallus xenopterus | 1 | 1 | 0 |
| Rufous-sided Crake Laterallus melanophaius | Red-and-white Crake Rufirallus leucopyrrhus | 1 | 0 | 1 |
| Red-and-white Crake Rufirallus leucopyrrhus | Rufous-faced Crake Rufirallus xenopterus | 1 | 0 | 1 |
| Red-and-white Crake Rufirallus leucopyrrhus | Sungrebe Heliornis fulica | 1 | 0 | 1 |
| Grey Plover Pluvialis squatarola | American Golden Plover Pluvialis dominica | 1 | 1 | 0 |
| Pied Plover Hoploxypterus cayanus | Collared Plover Anarhynchus collaris | 1 | 0 | 1 |
| Spotted Sandpiper Actitis macularius | Lesser Yellowlegs Tringa flavipes | 1 | 1 | 0 |
| Solitary Sandpiper Tringa solitaria | Lesser Yellowlegs Tringa flavipes | 1 | 0 | 1 |
| Greater Yellowlegs Tringa melanoleuca | Stilt Sandpiper Calidris himantopus | 1 | 0 | 1 |
| Buff-breasted Sandpiper Calidris subruficollis | Baird's Sandpiper Calidris bairdii | 1 | 1 | 0 |
| Sanderling Calidris alba | Baird's Sandpiper Calidris bairdii | 1 | 1 | 0 |
| Black Skimmer Rynchops niger | Large-billed Tern Phaetusa simplex | 1 | 0 | 1 |
| Jabiru Jabiru mycteria | Wood Stork Mycteria americana | 1 | 0 | 1 |
| Rufescent Tiger-Heron Tigrisoma lineatum | Stripe-backed Bittern Botaurus involucris | 1 | 1 | 0 |
| Pinnated Bittern Botaurus pinnatus | Stripe-backed Bittern Botaurus involucris | 1 | 1 | 0 |
| Snowy Egret Egretta thula | Great White Egret Ardea alba | 1 | 1 | 0 |
| Snowy Egret Egretta thula | Western Cattle-Egret Ardea ibis | 1 | 0 | 1 |
| White-faced Ibis Plegadis chihi | Green Ibis Mesembrinibis cayennensis | 1 | 1 | 0 |
| Green Ibis Mesembrinibis cayennensis | Bare-faced Ibis Phimosus infuscatus | 1 | 0 | 1 |
| Bare-faced Ibis Phimosus infuscatus | Buff-necked Ibis Theristicus caudatus | 1 | 0 | 1 |
| White-tailed Kite Elanus leucurus | Grey-headed Kite Leptodon cayanensis | 1 | 1 | 0 |
| Hook-billed Kite Chondrohierax uncinatus | Grey-headed Kite Leptodon cayanensis | 1 | 1 | 0 |
| Black-collared Hawk Busarellus nigricollis | Rufous-thighed Kite Harpagus diodon | 1 | 0 | 1 |
| Snail Kite Rostrhamus sociabilis | Rufous-thighed Kite Harpagus diodon | 1 | 0 | 1 |
| Mississippi Kite Ictinia mississippiensis | Plumbeous Kite Ictinia plumbea | 1 | 0 | 1 |
| Plumbeous Kite Ictinia plumbea | Long-winged Harrier Circus buffoni | 1 | 0 | 1 |
| Long-winged Harrier Circus buffoni | Bicoloured Hawk Astur bicolor | 1 | 1 | 0 |
| Cinereous Harrier Circus cinereus | Bicoloured Hawk Astur bicolor | 1 | 0 | 1 |
| Sharp-shinned Hawk Accipiter striatus | Bicoloured Hawk Astur bicolor | 1 | 0 | 1 |
| Savanna Hawk Buteogallus meridionalis | Chaco Eagle Buteogallus coronatus | 1 | 1 | 0 |
| Savanna Hawk Buteogallus meridionalis | Great Black Hawk Buteogallus urubitinga | 1 | 0 | 1 |
| White-tailed Hawk Geranoaetus albicaudatus | Black-chested Buzzard-Eagle Geranoaetus melanoleucus | 1 | 1 | 0 |
| Black-chested Buzzard-Eagle Geranoaetus melanoleucus | Short-tailed Hawk Buteo brachyurus | 1 | 0 | 1 |
| Swainson's Hawk Buteo swainsoni | Zone-tailed Hawk Buteo albonotatus | 1 | 1 | 0 |
| Black-capped Screech-Owl Megascops atricapilla | Tawny-browed Owl Pulsatrix koeniswaldiana | 1 | 1 | 0 |
| Tawny-browed Owl Pulsatrix koeniswaldiana | Great Horned Owl Bubo virginianus | 1 | 0 | 1 |
| Ferruginous Pygmy-Owl Glaucidium brasilianum | Burrowing Owl Athene cunicularia | 1 | 1 | 0 |
| Mottled Owl Strix virgata | Rusty-barred Owl Strix hylophila | 1 | 0 | 1 |
| Rusty-barred Owl Strix hylophila | Striped Owl Asio clamator | 1 | 1 | 0 |
| Mottled Owl Strix virgata | Chaco Owl Strix chacoensis | 1 | 0 | 1 |
| Chaco Owl Strix chacoensis | Short-eared Owl Asio flammeus | 1 | 1 | 0 |
| Blue-crowned Trogon Trogon curucui | Surucua Trogon Trogon surrucura | 1 | 1 | 0 |
| Blue-crowned Trogon Trogon curucui | Amazonian Motmot Momotus momota | 1 | 1 | 0 |
| Blue-crowned Trogon Trogon curucui | Atlantic Black-throated Trogon Trogon chrysochloros | 1 | 0 | 1 |
| Atlantic Black-throated Trogon Trogon chrysochloros | Amazonian Motmot Momotus momota | 1 | 1 | 0 |
| Amazonian Motmot Momotus momota | Rufous-capped Motmot Baryphthengus ruficapillus | 1 | 0 | 1 |
| Amazonian Motmot Momotus momota | Ringed Kingfisher Megaceryle torquata | 1 | 0 | 1 |
| Ringed Kingfisher Megaceryle torquata | Amazon Kingfisher Chloroceryle amazona | 1 | 0 | 1 |
| American Pygmy Kingfisher Chloroceryle aenea | Green Kingfisher Chloroceryle americana | 1 | 0 | 1 |
| Buff-bellied Puffbird Notharchus swainsoni | Rusty-breasted Nunlet Nonnula rubecula | 1 | 1 | 0 |
| Spot-backed Puffbird Nystalus maculatus | Rusty-breasted Nunlet Nonnula rubecula | 1 | 0 | 1 |
| Chestnut-eared Aracari Pteroglossus castanotis | Spot-billed Toucanet Selenidera maculirostris | 1 | 0 | 1 |
| Spot-billed Toucanet Selenidera maculirostris | Red-breasted Toucan Ramphastos dicolorus | 1 | 0 | 1 |
| Red-breasted Toucan Ramphastos dicolorus | Ochre-collared Piculet Picumnus temminckii | 1 | 1 | 0 |
| Yellow-fronted Woodpecker Melanerpes flavifrons | White-fronted Woodpecker Melanerpes cactorum | 1 | 0 | 1 |
| White-spotted Woodpecker Veniliornis spilogaster | Little Woodpecker Veniliornis passerinus | 1 | 1 | 0 |
| Checkered Woodpecker Veniliornis mixtus | Little Woodpecker Veniliornis passerinus | 1 | 1 | 0 |
| Little Woodpecker Veniliornis passerinus | Robust Woodpecker Campephilus robustus | 1 | 1 | 0 |
| Cream-backed Woodpecker Campephilus leucopogon | Black-bodied Woodpecker Dryocopus schulzii | 1 | 1 | 0 |
| Blond-crested Woodpecker Celeus flavescens | Golden-green Woodpecker Piculus chrysochloros | 1 | 1 | 0 |
| Golden-green Woodpecker Piculus chrysochloros | Green-barred Woodpecker Colaptes melanochloros | 1 | 1 | 0 |
| White-browed Woodpecker Piculus aurulentus | Campo Flicker Colaptes campestris | 1 | 0 | 1 |
| Crested Caracara Caracara plancus | Yellow-headed Caracara Daptrius chimachima | 1 | 1 | 0 |
| Aplomado Falcon Falco femoralis | Peregrine Falcon Falco peregrinus | 1 | 0 | 1 |
| Yellow-chevroned Parakeet Brotogeris chiriri | Yellow-faced Parrot Alipiopsitta xanthops | 1 | 1 | 0 |
| Pileated Parrot Pionopsitta pileata | Scaly-headed Parrot Pionus maximiliani | 1 | 1 | 0 |
| Yellow-chevroned Parakeet Brotogeris chiriri | Scaly-headed Parrot Pionus maximiliani | 1 | 0 | 1 |
| Vinaceous-breasted Amazon Amazona vinacea | Cobalt-rumped Parrotlet Forpus xanthopterygius | 1 | 1 | 0 |
| Turquoise-fronted Amazon Amazona aestiva | Blaze-winged Parakeet Pyrrhura devillei | 1 | 1 | 0 |
| Turquoise-fronted Amazon Amazona aestiva | Cobalt-rumped Parrotlet Forpus xanthopterygius | 1 | 0 | 1 |
| Cobalt-rumped Parrotlet Forpus xanthopterygius | Green-cheeked Parakeet Pyrrhura molinae | 1 | 1 | 0 |
| Blaze-winged Parakeet Pyrrhura devillei | Maroon-bellied Parakeet Pyrrhura frontalis | 1 | 1 | 0 |
| Maroon-bellied Parakeet Pyrrhura frontalis | Green-cheeked Parakeet Pyrrhura molinae | 1 | 0 | 1 |
| Blue-winged Macaw Primolius maracana | Blue-crowned Parakeet Thectocercus acuticaudatus | 1 | 1 | 0 |
| Blue-winged Macaw Primolius maracana | Yellow-collared Macaw Primolius auricollis | 1 | 0 | 1 |
| Blue-crowned Parakeet Thectocercus acuticaudatus | White-eyed Parakeet Psittacara leucophthalmus | 1 | 1 | 0 |
| Spot-backed Antshrike Hypoedaleus guttatus | Giant Antshrike Batara cinerea | 1 | 1 | 0 |
| Giant Antshrike Batara cinerea | Tufted Antshrike Mackenziaena severa | 1 | 0 | 1 |
| Tufted Antshrike Mackenziaena severa | Rufous-capped Antshrike Thamnophilus ruficapillus | 1 | 1 | 0 |
| Large-tailed Antshrike Mackenziaena leachii | Great Antshrike Taraba major | 1 | 0 | 1 |
| Barred Antshrike Thamnophilus doliatus | Rufous-winged Antshrike Thamnophilus torquatus | 1 | 0 | 1 |
| Rufous-winged Antshrike Thamnophilus torquatus | Variable Antshrike Thamnophilus caerulescens | 1 | 1 | 0 |
| Bolivian Slaty-Antshrike Thamnophilus sticturus | Stripe-backed Antbird Myrmorchilus strigilatus | 1 | 1 | 0 |
| Bolivian Slaty-Antshrike Thamnophilus sticturus | Variable Antshrike Thamnophilus caerulescens | 1 | 0 | 1 |
| Variable Antshrike Thamnophilus caerulescens | Stripe-backed Antbird Myrmorchilus strigilatus | 1 | 1 | 0 |
| Black-capped Antwren Herpsilochmus atricapillus | Rufous-margined Antwren Herpsilochmus rufimarginatus | 1 | 0 | 1 |
| Rufous-margined Antwren Herpsilochmus rufimarginatus | Dusky-tailed Antbird Drymophila malura | 1 | 1 | 0 |
| Black-bellied Antwren Formicivora melanogaster | Streak-capped Antwren Terenura maculata | 1 | 1 | 0 |
| Black-bellied Antwren Formicivora melanogaster | Rusty-backed Antwren Formicivora rufa | 1 | 0 | 1 |
| Mato Grosso Antbird Cercomacra melanaria | Western Fire-eye Pyriglena maura | 1 | 0 | 1 |
| Western Fire-eye Pyriglena maura | White-shouldered Fire-eye Pyriglena leucoptera | 1 | 0 | 1 |
| Rufous Gnateater Conopophaga lineata | Speckle-breasted Antpitta Cryptopezus nattereri | 1 | 1 | 0 |
| Rufous Gnateater Conopophaga lineata | Crested Gallito Rhinocrypta lanceolata | 1 | 1 | 0 |
| Variegated Antpitta Grallaria varia | Short-tailed Antthrush Chamaeza campanisona | 1 | 1 | 0 |
| Variegated Antpitta Grallaria varia | Crested Gallito Rhinocrypta lanceolata | 1 | 0 | 1 |
| Plain-winged Woodcreeper Dendrocincla turdina | Planalto Woodcreeper Dendrocolaptes platyrostris | 1 | 1 | 0 |
| Plain-winged Woodcreeper Dendrocincla turdina | White-throated Woodcreeper Xiphocolaptes albicollis | 1 | 1 | 0 |
| Plain-winged Woodcreeper Dendrocincla turdina | Black-banded Woodcreeper Dendrocolaptes picumnus | 1 | 0 | 1 |
| Planalto Woodcreeper Dendrocolaptes platyrostris | Lesser Woodcreeper Xiphorhynchus fuscus | 1 | 1 | 0 |
| Planalto Woodcreeper Dendrocolaptes platyrostris | White-throated Woodcreeper Xiphocolaptes albicollis | 1 | 0 | 1 |
| White-throated Woodcreeper Xiphocolaptes albicollis | Lesser Woodcreeper Xiphorhynchus fuscus | 1 | 0 | 1 |
| Red-billed Scythebill Campylorhamphus trochilirostris | Scimitar-billed Woodcreeper Drymornis bridgesii | 1 | 1 | 0 |
| Scimitar-billed Woodcreeper Drymornis bridgesii | Narrow-billed Woodcreeper Lepidocolaptes angustirostris | 1 | 1 | 0 |
| Chaco Earthcreeper Tarphonomus certhioides | Rufous Hornero Furnarius rufus | 1 | 0 | 1 |
| Rufous Hornero Furnarius rufus | Sharp-tailed Streamcreeper Lochmias nematura | 1 | 1 | 0 |
| Streaked Xenops Xenops rutilans | Black-capped Foliage-gleaner Philydor atricapillus | 1 | 0 | 1 |
| Black-capped Foliage-gleaner Philydor atricapillus | Russet-mantled Foliage-gleaner Syndactyla dimidiata | 1 | 1 | 0 |
| Russet-mantled Foliage-gleaner Syndactyla dimidiata | Buff-fronted Foliage-gleaner Dendroma rufa | 1 | 0 | 1 |
| Buff-fronted Foliage-gleaner Dendroma rufa | Rufous-fronted Thornbird Phacellodomus rufifrons | 1 | 1 | 0 |
| Russet-mantled Foliage-gleaner Syndactyla dimidiata | Chestnut-capped Foliage-gleaner Clibanornis rectirostris | 1 | 0 | 1 |
| Little Thornbird Phacellodomus sibilatrix | Firewood-gatherer Anumbius annumbi | 1 | 0 | 1 |
| Greater Thornbird Phacellodomus ruber | Firewood-gatherer Anumbius annumbi | 1 | 0 | 1 |
| Greater Thornbird Phacellodomus ruber | Lark-like Brushrunner Coryphistera alaudina | 1 | 0 | 1 |
| Lark-like Brushrunner Coryphistera alaudina | Stripe-crowned Spinetail Cranioleuca pyrrhophia | 1 | 1 | 0 |
| Lark-like Brushrunner Coryphistera alaudina | Short-billed Canastero Asthenes baeri | 1 | 0 | 1 |
| Short-billed Canastero Asthenes baeri | Sharp-billed Canastero Asthenes pyrrholeuca | 1 | 1 | 0 |
| Short-billed Canastero Asthenes baeri | Olive Spinetail Cranioleuca obsoleta | 1 | 1 | 0 |
| Stripe-crowned Spinetail Cranioleuca pyrrhophia | Bay-capped Wren-Spinetail Spartonoica maluroides | 1 | 1 | 0 |
| Stripe-crowned Spinetail Cranioleuca pyrrhophia | Olive Spinetail Cranioleuca obsoleta | 1 | 0 | 1 |
| Olive Spinetail Cranioleuca obsoleta | Rufous Cacholote Pseudoseisura unirufa | 1 | 1 | 0 |
| Olive Spinetail Cranioleuca obsoleta | Brown Cacholote Pseudoseisura lophotes | 1 | 1 | 0 |
| Bay-capped Wren-Spinetail Spartonoica maluroides | Rufous Cacholote Pseudoseisura unirufa | 1 | 1 | 0 |
| Chotoy Spinetail Schoeniophylax phryganophilus | Ochre-cheeked Spinetail Synallaxis scutata | 1 | 0 | 1 |
| Ochre-cheeked Spinetail Synallaxis scutata | Rufous-capped Spinetail Synallaxis ruficapilla | 1 | 1 | 0 |
| Chotoy Spinetail Schoeniophylax phryganophilus | Grey-bellied Spinetail Synallaxis cinerascens | 1 | 0 | 1 |
| Ochre-cheeked Spinetail Synallaxis scutata | White-lored Spinetail Synallaxis albilora | 1 | 0 | 1 |
| Grey-bellied Spinetail Synallaxis cinerascens | Rufous-capped Spinetail Synallaxis ruficapilla | 1 | 0 | 1 |
| Cinereous-breasted Spinetail Synallaxis hypospodia | Sooty-fronted Spinetail Synallaxis frontalis | 1 | 1 | 0 |
| Spix's Spinetail Synallaxis spixi | Sooty-fronted Spinetail Synallaxis frontalis | 1 | 0 | 1 |
| Band-tailed Manakin Pipra fasciicauda | White-tipped Plantcutter Phytotoma rutila | 1 | 1 | 0 |
| Band-tailed Manakin Pipra fasciicauda | Red-ruffed Fruitcrow Pyroderus scutatus | 1 | 1 | 0 |
| White-tipped Plantcutter Phytotoma rutila | Swallow-tailed Cotinga Phibalura flavirostris | 1 | 1 | 0 |
| Bare-throated Bellbird Procnias nudicollis | Black-tailed Tityra Tityra cayana | 1 | 1 | 0 |
| Greenish Schiffornis Schiffornis virescens | White-naped Xenopsaris Xenopsaris albinucha | 1 | 1 | 0 |
| Greenish Schiffornis Schiffornis virescens | Green-backed Becard Pachyramphus viridis | 1 | 1 | 0 |
| Greenish Schiffornis Schiffornis virescens | Chestnut-crowned Becard Pachyramphus castaneus | 1 | 1 | 0 |
| Green-backed Becard Pachyramphus viridis | Chestnut-crowned Becard Pachyramphus castaneus | 1 | 0 | 1 |
| White-winged Becard Pachyramphus polychopterus | Crested Becard Pachyramphus validus | 1 | 0 | 1 |
| Sharpbill Oxyruncus cristatus | Wing-barred Piprites Piprites chloris | 1 | 0 | 1 |
| Sharpbill Oxyruncus cristatus | White-throated Spadebill Platyrinchus mystaceus | 1 | 0 | 1 |
| Wing-barred Piprites Piprites chloris | White-throated Spadebill Platyrinchus mystaceus | 1 | 0 | 1 |
| Many-coloured Rush Tyrant Tachuris rubrigastra | Grey-hooded Flycatcher Mionectes rufiventris | 1 | 0 | 1 |
| Grey-hooded Flycatcher Mionectes rufiventris | Sao Paulo Bristle-Tyrant Pogonotriccus paulista | 1 | 1 | 0 |
| Grey-hooded Flycatcher Mionectes rufiventris | Southern Bristle-Tyrant Pogonotriccus eximius | 1 | 0 | 1 |
| Southern Bristle-Tyrant Pogonotriccus eximius | Sao Paulo Bristle-Tyrant Pogonotriccus paulista | 1 | 1 | 0 |
| Sao Paulo Bristle-Tyrant Pogonotriccus paulista | Mottle-cheeked Tyrannulet Phylloscartes ventralis | 1 | 0 | 1 |
| Sao Paulo Bristle-Tyrant Pogonotriccus paulista | Bay-ringed Tyrannulet Phylloscartes sylviolus | 1 | 0 | 1 |
| Bay-ringed Tyrannulet Phylloscartes sylviolus | Drab-breasted Pygmy-Tyrant Hemitriccus diops | 1 | 1 | 0 |
| Bay-ringed Tyrannulet Phylloscartes sylviolus | Eared Pygmy-Tyrant Myiornis auricularis | 1 | 0 | 1 |
| Drab-breasted Pygmy-Tyrant Hemitriccus diops | Pearly-vented Tody-Tyrant Hemitriccus margaritaceiventer | 1 | 1 | 0 |
| Eared Pygmy-Tyrant Myiornis auricularis | Pearly-vented Tody-Tyrant Hemitriccus margaritaceiventer | 1 | 0 | 1 |
| Ochre-faced Tody-Flycatcher Poecilotriccus plumbeiceps | Yellow-olive Flatbill Tolmomyias sulphurescens | 1 | 1 | 0 |
| Ochre-faced Tody-Flycatcher Poecilotriccus plumbeiceps | Rusty-fronted Tody-Flycatcher Poecilotriccus latirostris | 1 | 0 | 1 |
| Rusty-fronted Tody-Flycatcher Poecilotriccus latirostris | Common Tody-Flycatcher Todirostrum cinereum | 1 | 1 | 0 |
| Rusty-fronted Tody-Flycatcher Poecilotriccus latirostris | Southern Beardless-Tyrannulet Camptostoma obsoletum | 1 | 1 | 0 |
| Rusty-fronted Tody-Flycatcher Poecilotriccus latirostris | Greenish Elaenia Myiopagis viridicata | 1 | 1 | 0 |
| Yellow-olive Flatbill Tolmomyias sulphurescens | Southern Mouse-coloured Tyrannulet Nesotriccus murinus | 1 | 1 | 0 |
| Suiriri Flycatcher Suiriri suiriri | Southern Mouse-coloured Tyrannulet Nesotriccus murinus | 1 | 0 | 1 |
| Southern Mouse-coloured Tyrannulet Nesotriccus murinus | Bearded Tachuri Polystictus pectoralis | 1 | 1 | 0 |
| Yellow Tyrannulet Capsiempis flaveola | Southern Tropical Pewee Contopus cinereus | 1 | 1 | 0 |
| Sharp-tailed Tyrant Culicivora caudacuta | Dinelli's Doradito Pseudocolopteryx dinelliana | 1 | 1 | 0 |
| Crested Doradito Pseudocolopteryx sclateri | Dinelli's Doradito Pseudocolopteryx dinelliana | 1 | 1 | 0 |
| Dinelli's Doradito Pseudocolopteryx dinelliana | Grey-headed Elaenia Myiopagis caniceps | 1 | 0 | 1 |
| Warbling Doradito Pseudocolopteryx flaviventris | Grey-headed Elaenia Myiopagis caniceps | 1 | 0 | 1 |
| Grey-headed Elaenia Myiopagis caniceps | Greenish Elaenia Myiopagis viridicata | 1 | 1 | 0 |
| Warbling Doradito Pseudocolopteryx flaviventris | Greenish Elaenia Myiopagis viridicata | 1 | 0 | 1 |
| Greenish Elaenia Myiopagis viridicata | Small-headed Elaenia Elaenia sordida | 1 | 0 | 1 |
| Greenish Elaenia Myiopagis viridicata | Yellow-bellied Elaenia Elaenia flavogaster | 1 | 0 | 1 |
| Yellow-bellied Elaenia Elaenia flavogaster | Small-billed Elaenia Elaenia parvirostris | 1 | 1 | 0 |
| Small-billed Elaenia Elaenia parvirostris | Lesser Elaenia Elaenia chiriquensis | 1 | 1 | 0 |
| Small-billed Elaenia Elaenia parvirostris | Large Elaenia Elaenia spectabilis | 1 | 0 | 1 |
| Large Elaenia Elaenia spectabilis | Sooty Tyrannulet Serpophaga nigricans | 1 | 1 | 0 |
| Lesser Elaenia Elaenia chiriquensis | White-crested Elaenia Elaenia albiceps | 1 | 1 | 0 |
| White-crested Elaenia Elaenia albiceps | Straneck's Tyrannulet Serpophaga griseicapilla | 1 | 1 | 0 |
| Sooty Tyrannulet Serpophaga nigricans | White-crested Tyrannulet Serpophaga subcristata | 1 | 0 | 1 |
| Rough-legged Tyrannulet Acrochordopus burmeisteri | Greenish Tyrannulet Phyllomyias virescens | 1 | 1 | 0 |
| Fulvous-crowned Scrub-Tyrant Euscarthmus meloryphus | Plain Tyrannulet Inezia inornata | 1 | 1 | 0 |
| Fulvous-crowned Scrub-Tyrant Euscarthmus meloryphus | Bran-coloured Flycatcher Myiophobus fasciatus | 1 | 1 | 0 |
| Plain Tyrannulet Inezia inornata | Bran-coloured Flycatcher Myiophobus fasciatus | 1 | 1 | 0 |
| Plain Tyrannulet Inezia inornata | Southern Tropical Pewee Contopus cinereus | 1 | 1 | 0 |
| Bran-coloured Flycatcher Myiophobus fasciatus | Southern Tropical Pewee Contopus cinereus | 1 | 0 | 1 |
| Fuscous Flycatcher Cnemotriccus fuscatus | Southern Scrub-Flycatcher Sublegatus modestus | 1 | 1 | 0 |
| Southern Scrub-Flycatcher Sublegatus modestus | Austral Negrito Lessonia rufa | 1 | 1 | 0 |
| Southern Scrub-Flycatcher Sublegatus modestus | Vermilion Flycatcher Pyrocephalus rubinus | 1 | 0 | 1 |
| Austral Negrito Lessonia rufa | Blue-billed Black-Tyrant Knipolegus cyanirostris | 1 | 0 | 1 |
| Cinereous Tyrant Knipolegus striaticeps | Hudson's Black-Tyrant Knipolegus hudsoni | 1 | 1 | 0 |
| Cinereous Tyrant Knipolegus striaticeps | White-winged Black-Tyrant Knipolegus aterrimus | 1 | 0 | 1 |
| White-winged Black-Tyrant Knipolegus aterrimus | Spectacled Tyrant Hymenops perspicillatus | 1 | 0 | 1 |
| White-rumped Monjita Xolmis velatus | Black-crowned Monjita Neoxolmis coronatus | 1 | 1 | 0 |
| Grey-bellied Shrike-Tyrant Agriornis micropterus | Lesser Shrike-Tyrant Agriornis murinus | 1 | 1 | 0 |
| White-headed Marsh Tyrant Arundinicola leucocephala | Black-backed Water-Tyrant Fluvicola albiventer | 1 | 0 | 1 |
| Black-backed Water-Tyrant Fluvicola albiventer | Cock-tailed Tyrant Alectrurus tricolor | 1 | 1 | 0 |
| Shear-tailed Grey Tyrant Muscipipra vetula | Strange-tailed Tyrant Alectrurus risora | 1 | 1 | 0 |
| Streamer-tailed Tyrant Gubernetes yetapa | Long-tailed Tyrant Colonia colonus | 1 | 1 | 0 |
| Strange-tailed Tyrant Alectrurus risora | Sibilant Sirystes Sirystes sibilator | 1 | 0 | 1 |
| Rufous Casiornis Casiornis rufus | Swainson's Flycatcher Myiarchus swainsoni | 1 | 0 | 1 |
| Swainson's Flycatcher Myiarchus swainsoni | Short-crested Flycatcher Myiarchus ferox | 1 | 1 | 0 |
| Cattle Tyrant Machetornis rixosa | Social Flycatcher Myiozetetes similis | 1 | 1 | 0 |
| Three-striped Flycatcher Conopias trivirgatus | Piratic Flycatcher Legatus leucophaius | 1 | 0 | 1 |
| Piratic Flycatcher Legatus leucophaius | Tropical Kingbird Tyrannus melancholicus | 1 | 1 | 0 |
| Streaked Flycatcher Myiodynastes maculatus | Variegated Flycatcher Empidonomus varius | 1 | 0 | 1 |
| Variegated Flycatcher Empidonomus varius | Tropical Kingbird Tyrannus melancholicus | 1 | 1 | 0 |
| Piratic Flycatcher Legatus leucophaius | Crowned Slaty Flycatcher Empidonomus aurantioatrocristatus | 1 | 0 | 1 |
| Crowned Slaty Flycatcher Empidonomus aurantioatrocristatus | Eastern Kingbird Tyrannus tyrannus | 1 | 0 | 1 |
| Rufous-browed Peppershrike Cyclarhis gujanensis | Rufous-crowned Greenlet Hylophilus poicilotis | 1 | 1 | 0 |
| Purplish Jay Cyanocorax cyanomelas | Curl-crested Jay Cyanocorax cristatellus | 1 | 0 | 1 |
| White-winged Swallow Tachycineta albiventer | White-rumped Swallow Tachycineta leucorrhoa | 1 | 1 | 0 |
| White-rumped Swallow Tachycineta leucorrhoa | Purple Martin Progne subis | 1 | 1 | 0 |
| White-rumped Swallow Tachycineta leucorrhoa | Grey-breasted Martin Progne chalybea | 1 | 1 | 0 |
| Chilean Swallow Tachycineta leucopyga | Purple Martin Progne subis | 1 | 1 | 0 |
| Chilean Swallow Tachycineta leucopyga | Southern Martin Progne elegans | 1 | 1 | 0 |
| Grey-breasted Martin Progne chalybea | Southern Rough-winged Swallow Stelgidopteryx ruficollis | 1 | 1 | 0 |
| Grey-breasted Martin Progne chalybea | Brown-chested Martin Progne tapera | 1 | 0 | 1 |
| Brown-chested Martin Progne tapera | Southern Rough-winged Swallow Stelgidopteryx ruficollis | 1 | 1 | 0 |
| Southern Rough-winged Swallow Stelgidopteryx ruficollis | Barn Swallow Hirundo rustica | 1 | 1 | 0 |
| Brown-chested Martin Progne tapera | Blue-and-white Swallow Pygochelidon cyanoleuca | 1 | 0 | 1 |
| Tawny-headed Swallow Alopochelidon fucata | Cliff Swallow Petrochelidon pyrrhonota | 1 | 1 | 0 |
| Grass Wren Cistothorus platensis | Thrush-like Wren Campylorhynchus turdinus | 1 | 1 | 0 |
| Thrush-like Wren Campylorhynchus turdinus | White-banded Mockingbird Mimus triurus | 1 | 1 | 0 |
| Thrush-like Wren Campylorhynchus turdinus | Chalk-browed Mockingbird Mimus saturninus | 1 | 0 | 1 |
| Chalk-browed Mockingbird Mimus saturninus | White-banded Mockingbird Mimus triurus | 1 | 1 | 0 |
| Fawn-breasted Wren Cantorchilus guarayanus | White-banded Mockingbird Mimus triurus | 1 | 0 | 1 |
| Pale-breasted Thrush Turdus leucomelas | White-necked Thrush Turdus albicollis | 1 | 0 | 1 |
| White-necked Thrush Turdus albicollis | Rufous-bellied Thrush Turdus rufiventris | 1 | 1 | 0 |
| Rufous-bellied Thrush Turdus rufiventris | Creamy-bellied Thrush Turdus amaurochalinus | 1 | 1 | 0 |
| White-necked Thrush Turdus albicollis | Blacksmith Thrush Turdus subalaris | 1 | 0 | 1 |
| Blacksmith Thrush Turdus subalaris | Creamy-bellied Thrush Turdus amaurochalinus | 1 | 0 | 1 |
| Ochre-breasted Pipit Anthus nattereri | Hellmayr's Pipit Anthus hellmayri | 1 | 1 | 0 |
| Hooded Siskin Spinus magellanicus | Grassland Sparrow Ammodramus humeralis | 1 | 0 | 1 |
| Chaco Sparrow Rhynchospiza strigiceps | Saffron-billed Sparrow Arremon flavirostris | 1 | 0 | 1 |
| Bobolink Dolichonyx oryzivorus | White-browed Meadowlark Leistes superciliaris | 1 | 1 | 0 |
| Crested Oropendola Psarocolius decumanus | Solitary Black Cacique Cacicus solitarius | 1 | 1 | 0 |
| Solitary Black Cacique Cacicus solitarius | Red-rumped Cacique Cacicus haemorrhous | 1 | 1 | 0 |
| Orange-backed Troupial Icterus croconotus | Screaming Cowbird Molothrus rufoaxillaris | 1 | 0 | 1 |
| Shiny Cowbird Molothrus bonariensis | Giant Cowbird Molothrus oryzivorus | 1 | 1 | 0 |
| Shiny Cowbird Molothrus bonariensis | Chopi Blackbird Gnorimopsar chopi | 1 | 1 | 0 |
| Giant Cowbird Molothrus oryzivorus | Chopi Blackbird Gnorimopsar chopi | 1 | 0 | 1 |
| Unicoloured Blackbird Agelasticus cyanopus | Yellow-rumped Marshbird Pseudoleistes guirahuro | 1 | 1 | 0 |
| Unicoloured Blackbird Agelasticus cyanopus | Chestnut-capped Blackbird Chrysomus ruficapillus | 1 | 0 | 1 |
| Chestnut-capped Blackbird Chrysomus ruficapillus | Yellow-rumped Marshbird Pseudoleistes guirahuro | 1 | 0 | 1 |
| Saffron-cowled Blackbird Xanthopsar flavus | Yellow-rumped Marshbird Pseudoleistes guirahuro | 1 | 0 | 1 |
| Southern Yellowthroat Geothlypis velata | Tropical Parula Setophaga pitiayumi | 1 | 1 | 0 |
| Golden-crowned Warbler Basileuterus culicivorus | Flavescent Warbler Myiothlypis flaveola | 1 | 1 | 0 |
| Hepatic Tanager Piranga flava | Blackish-blue Seedeater Amaurospiza moesta | 1 | 1 | 0 |
| Black-backed Grosbeak Pheucticus aureoventris | Blackish-blue Seedeater Amaurospiza moesta | 1 | 0 | 1 |
| Glaucous-blue Grosbeak Cyanoloxia glaucocaerulea | Ultramarine Grosbeak Cyanoloxia brissonii | 1 | 1 | 0 |
| Yellow-billed Cardinal Paroaria capitata | Hooded Tanager Nemosia pileata | 1 | 1 | 0 |
| Magpie Tanager Cissopis leverianus | Hooded Tanager Nemosia pileata | 1 | 0 | 1 |
| Hooded Tanager Nemosia pileata | Orange-headed Tanager Thlypopsis sordida | 1 | 1 | 0 |
| Black-goggled Tanager Trichothraupis melanops | Ruby-crowned Tanager Tachyphonus coronatus | 1 | 1 | 0 |
| Black-capped Warbling Finch Microspingus melanoleucus | Grey-headed Tanager Eucometis penicillata | 1 | 0 | 1 |
| Ruby-crowned Tanager Tachyphonus coronatus | Silver-beaked Tanager Ramphocelus carbo | 1 | 1 | 0 |
| Blue-and-yellow Tanager Rauenia bonariensis | Palm Tanager Thraupis palmarum | 1 | 1 | 0 |
| Palm Tanager Thraupis palmarum | Burnished-buff Tanager Stilpnia cayana | 1 | 0 | 1 |
| Green-headed Tanager Tangara seledon | Blue Dacnis Dacnis cayana | 1 | 1 | 0 |
| Green-headed Tanager Tangara seledon | Swallow Tanager Tersina viridis | 1 | 0 | 1 |
| Blue Dacnis Dacnis cayana | Guira Tanager Hemithraupis guira | 1 | 1 | 0 |
| White-rumped Tanager Cypsnagra hirundinacea | Saffron Finch Sicalis flaveola | 1 | 1 | 0 |
| Long-tailed Reed Finch Donacospiza albifrons | Black-and-rufous Warbling Finch Poospiza nigrorufa | 1 | 1 | 0 |
| Saffron Finch Sicalis flaveola | Grassland Yellow-Finch Sicalis luteola | 1 | 1 | 0 |
| Grassland Yellow-Finch Sicalis luteola | Wedge-tailed Grass-Finch Emberizoides herbicola | 1 | 0 | 1 |
| Wedge-tailed Grass-Finch Emberizoides herbicola | Great Pampa-Finch Embernagra platensis | 1 | 1 | 0 |
| Lined Seedeater Sporophila lineola | Pearly-bellied Seedeater Sporophila pileata | 1 | 1 | 0 |
| Pearly-bellied Seedeater Sporophila pileata | Marsh Seedeater Sporophila palustris | 1 | 1 | 0 |
| Tawny-bellied Seedeater Sporophila hypoxantha | Dark-throated Seedeater Sporophila ruficollis | 1 | 0 | 1 |
| Dark-throated Seedeater Sporophila ruficollis | Marsh Seedeater Sporophila palustris | 1 | 1 | 0 |
| Dark-throated Seedeater Sporophila ruficollis | Rufous-rumped Seedeater Sporophila hypochroma | 1 | 1 | 0 |
| Rufous-rumped Seedeater Sporophila hypochroma | Chestnut-bellied Seed-Finch Sporophila angolensis | 1 | 1 | 0 |
| Chestnut Seedeater Sporophila cinnamomea | Chestnut-bellied Seed-Finch Sporophila angolensis | 1 | 0 | 1 |
| Plumbeous Seedeater Sporophila plumbea | Black-masked Finch Coryphaspiza melanotis | 1 | 0 | 1 |
| Many-coloured Chaco Finch Saltatricula multicolor | Bluish-grey Saltator Saltator coerulescens | 1 | 0 | 1 |
| Dull-coloured Grassquit Asemospiza obscura | Golden-billed Saltator Saltator aurantiirostris | 1 | 0 | 1 |