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 |
|---|---|---|---|---|
| Taiga Bean Goose Anser fabalis | Red-billed Chough Pyrrhocorax pyrrhocorax | 1 | 1 | 0 |
| Daurian Partridge Perdix dauurica | Common Quail Coturnix coturnix | 1 | 1 | 0 |
| Pacific Swift Apus pacificus | Sand Martin Riparia riparia | 1 | 1 | 0 |
| Oriental Plover Anarhynchus veredus | Tibetan Sand Plover Anarhynchus atrifrons | 1 | 1 | 0 |
| Black Tern Chlidonias niger | White-winged Black Tern Chlidonias leucopterus | 1 | 0 | 1 |
| Eastern Cattle-Egret Ardea coromanda | Medium Egret Ardea intermedia | 1 | 1 | 0 |
| Bearded Vulture Gypaetus barbatus | Crested Honey-buzzard Pernis ptilorhynchus | 1 | 0 | 1 |
| Black Kite Milvus migrans | Eurasian Skylark Alauda arvensis | 1 | 1 | 0 |
| Eurasian Golden Oriole Oriolus oriolus | Black-naped Oriole Oriolus chinensis | 1 | 0 | 1 |
| Yellow-browed Warbler Phylloscopus inornatus | Pallas's Warbler Phylloscopus proregulus | 1 | 1 | 0 |
| Pale-legged Leaf Warbler Phylloscopus tenellipes | Arctic Warbler Phylloscopus borealis | 1 | 1 | 0 |
| Mongolian Finch Bucanetes mongolicus | Asian Rosy-Finch Leucosticte arctoa | 1 | 1 | 0 |
| Black-headed Bunting Emberiza melanocephala | Red-headed Bunting Emberiza bruniceps | 1 | 0 | 1 |
| Ochre-rumped Bunting Emberiza yessoensis | Yellow-breasted Bunting Emberiza aureola | 1 | 1 | 0 |
| Rustic Bunting Emberiza rustica | Chestnut Bunting Emberiza rutila | 1 | 0 | 1 |