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 |
|---|---|---|---|---|
| Goosander Mergus merganser | Red-breasted Merganser Mergus serrator | 2 | 0 | 2 |
| Tree Pipit Anthus trivialis | Water Pipit Anthus spinoletta | 2 | 2 | 0 |
| Bar-tailed Godwit Limosa lapponica | Black-tailed Godwit Limosa limosa | 1 | 0 | 1 |
| Great Snipe Gallinago media | Common Snipe Gallinago gallinago | 1 | 1 | 0 |
| Sanderling Calidris alba | Dunlin Calidris alpina | 1 | 1 | 0 |
| Common Tern Sterna hirundo | Sandwich Tern Thalasseus sandvicensis | 1 | 1 | 0 |
| Great Northern Diver Gavia immer | Cory's Shearwater Calonectris diomedea | 1 | 1 | 0 |
| Greater Spotted Eagle Clanga clanga | Golden Eagle Aquila chrysaetos | 1 | 1 | 0 |
| Short-toed Eagle Circaetus gallicus | Booted Eagle Hieraaetus pennatus | 1 | 0 | 1 |
| Booted Eagle Hieraaetus pennatus | Bonelli's Eagle Aquila fasciata | 1 | 0 | 1 |
| Hen Harrier Circus cyaneus | Montagu's Harrier Circus pygargus | 1 | 0 | 1 |
| Levant Sparrowhawk Tachyspiza brevipes | Eurasian Sparrowhawk Accipiter nisus | 1 | 1 | 0 |
| American Barn Owl Tyto furcata | Eurasian Eagle Owl Bubo bubo | 1 | 1 | 0 |
| Eurasian Golden Oriole Oriolus oriolus | Red-backed Shrike Lanius collurio | 1 | 0 | 1 |
| Coal Tit Periparus ater | Sombre Tit Poecile lugubris | 1 | 0 | 1 |
| Greater Short-toed Lark Calandrella brachydactyla | Eurasian Skylark Alauda arvensis | 1 | 1 | 0 |
| Greater Short-toed Lark Calandrella brachydactyla | Woodlark Lullula arborea | 1 | 0 | 1 |
| Eastern Olivaceous Warbler Iduna pallida | Olive-tree Warbler Hippolais olivetorum | 1 | 1 | 0 |
| Olive-tree Warbler Hippolais olivetorum | Great Reed Warbler Acrocephalus arundinaceus | 1 | 0 | 1 |
| Great Reed Warbler Acrocephalus arundinaceus | Savi's Warbler Locustella luscinioides | 1 | 1 | 0 |
| Sand Martin Riparia riparia | Eurasian Crag Martin Ptyonoprogne rupestris | 1 | 0 | 1 |
| Eastern Bonelli's Warbler Phylloscopus orientalis | Common Chiffchaff Phylloscopus collybita | 1 | 0 | 1 |
| Redwing Turdus iliacus | Fieldfare Turdus pilaris | 1 | 0 | 1 |
| Common Redpoll Acanthis flammea | European Serin Serinus serinus | 1 | 1 | 0 |
| Common Starling Sturnus vulgaris | European Goldfinch Carduelis carduelis | 1 | 0 | 1 |