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 |
|---|---|---|---|---|
| Chilean Flamingo Phoenicopterus chilensis | Andean Flamingo Phoenicoparrus andinus | 2 | 2 | 0 |
| Chilean Tinamou Nothoprocta perdicaria | Elegant Crested-Tinamou Eudromia elegans | 1 | 1 | 0 |
| Upland Goose Chloephaga picta | Ruddy-headed Goose Chloephaga rubidiceps | 1 | 1 | 0 |
| Yellow-billed Pintail Anas georgica | Yellow-billed Teal Anas flavirostris | 1 | 1 | 0 |
| Golden-spotted Ground Dove Metriopelia aymara | West Peruvian Dove Zenaida meloda | 1 | 1 | 0 |
| Oasis Hummingbird Rhodopis vesper | Chilean Woodstar Eulidia yarrellii | 1 | 1 | 0 |
| Austral Rail Rallus antarcticus | Plumbeous Rail Pardirallus sanguinolentus | 1 | 0 | 1 |
| Red-gartered Coot Fulica armillata | White-winged Coot Fulica leucoptera | 1 | 0 | 1 |
| Grey-breasted Seedsnipe Thinocorus orbignyianus | Least Seedsnipe Thinocorus rumicivorus | 1 | 0 | 1 |
| Fuegian Snipe Gallinago stricklandii | Magellanic Snipe Gallinago magellanica | 1 | 0 | 1 |
| Western Sandpiper Calidris mauri | Semipalmated Sandpiper Calidris pusilla | 1 | 0 | 1 |
| Long-tailed Skua Stercorarius longicaudus | Arctic Skua Stercorarius parasiticus | 1 | 1 | 0 |
| Chilean Skua Stercorarius chilensis | South Polar Skua Stercorarius maccormicki | 1 | 1 | 0 |
| Swallow-tailed Gull Creagrus furcatus | Andean Gull Chroicocephalus serranus | 1 | 0 | 1 |
| Brown-hooded Gull Chroicocephalus maculipennis | Grey-hooded Gull Chroicocephalus cirrocephalus | 1 | 1 | 0 |
| Humboldt Penguin Spheniscus humboldti | Magellanic Penguin Spheniscus magellanicus | 1 | 0 | 1 |
| Southern Royal Albatross Diomedea epomophora | Snowy Albatross Diomedea exulans | 1 | 1 | 0 |
| Grey-headed Albatross Thalassarche chrysostoma | Buller's Albatross Thalassarche bulleri | 1 | 0 | 1 |
| Pincoya Storm-Petrel Oceanites pincoyae | Elliot's Storm-Petrel Oceanites gracilis | 1 | 1 | 0 |
| Stejneger's Petrel Pterodroma longirostris | Blue Petrel Halobaena caerulea | 1 | 1 | 0 |
| Great Shearwater Ardenna gravis | Buller's Shearwater Ardenna bulleri | 1 | 0 | 1 |
| Red-legged Cormorant Poikilocarbo gaimardi | Magellanic Cormorant Leucocarbo magellanicus | 1 | 0 | 1 |
| Black-faced Ibis Theristicus melanopis | Andean Ibis Theristicus branickii | 1 | 1 | 0 |
| Common Miner Geositta cunicularia | Rufous-banded Miner Geositta rufipennis | 1 | 1 | 0 |
| White-throated Earthcreeper Upucerthia albigula | Buff-breasted Earthcreeper Upucerthia validirostris | 1 | 0 | 1 |
| Buff-winged Cinclodes Cinclodes fuscus | Grey-flanked Cinclodes Cinclodes oustaleti | 1 | 1 | 0 |
| White-winged Cinclodes Cinclodes atacamensis | Seaside Cinclodes Cinclodes nigrofumosus | 1 | 1 | 0 |
| Austral Negrito Lessonia rufa | Andean Negrito Lessonia oreas | 1 | 0 | 1 |
| Cinnamon-bellied Ground-Tyrant Muscisaxicola capistratus | Black-fronted Ground-Tyrant Muscisaxicola frontalis | 1 | 1 | 0 |
| White-tailed Shrike-Tyrant Agriornis albicauda | Great Shrike-Tyrant Agriornis lividus | 1 | 1 | 0 |
| Peruvian Pipit Anthus peruvianus | Hellmayr's Pipit Anthus hellmayri | 1 | 1 | 0 |
| Blue-and-yellow Tanager Rauenia bonariensis | Tamarugo Conebill Conirostrum tamarugense | 1 | 1 | 0 |
| Bright-rumped Yellow-Finch Sicalis uropygialis | Greater Yellow-Finch Sicalis auriventris | 1 | 1 | 0 |
| Bright-rumped Yellow-Finch Sicalis uropygialis | Patagonian Yellow-Finch Sicalis lebruni | 1 | 1 | 0 |
| Greater Yellow-Finch Sicalis auriventris | Saffron Finch Sicalis flaveola | 1 | 1 | 0 |
| Greenish Yellow-Finch Sicalis olivascens | Grassland Yellow-Finch Sicalis luteola | 1 | 1 | 0 |
| Greater Yellow-Finch Sicalis auriventris | Patagonian Yellow-Finch Sicalis lebruni | 1 | 0 | 1 |