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 |
|---|---|---|---|---|
| Greater White-fronted Goose Anser albifrons | Northern Lapwing Vanellus vanellus | 1 | 0 | 1 |
| Common Woodpigeon Columba palumbus | European Bee-eater Merops apiaster | 1 | 1 | 0 |
| Grey Plover Pluvialis squatarola | Common Ringed Plover Charadrius hiaticula | 1 | 1 | 0 |
| Little Ringed Plover Thinornis dubius | Northern Lapwing Vanellus vanellus | 1 | 1 | 0 |
| Northern Lapwing Vanellus vanellus | Kentish Plover Anarhynchus alexandrinus | 1 | 0 | 1 |
| Northern Lapwing Vanellus vanellus | Black-headed Gull Chroicocephalus ridibundus | 1 | 1 | 0 |
| Eurasian Curlew Numenius arquata | Black-tailed Godwit Limosa limosa | 1 | 1 | 0 |
| Bar-tailed Godwit Limosa lapponica | Sedge Warbler Acrocephalus schoenobaenus | 1 | 0 | 1 |
| Great Snipe Gallinago media | Pallas's Gull Ichthyaetus ichthyaetus | 1 | 0 | 1 |
| Green Sandpiper Tringa ochropus | Spotted Redshank Tringa erythropus | 1 | 1 | 0 |
| Ruddy Turnstone Arenaria interpres | Yellowhammer Emberiza citrinella | 1 | 0 | 1 |
| Pallas's Gull Ichthyaetus ichthyaetus | Common Gull Larus canus | 1 | 1 | 0 |
| Gull-billed Tern Gelochelidon nilotica | Caspian Tern Hydroprogne caspia | 1 | 0 | 1 |
| Black Tern Chlidonias niger | Rose-coloured Starling Pastor roseus | 1 | 1 | 0 |
| Great Cormorant Phalacrocorax carbo | Bohemian Waxwing Bombycilla garrulus | 1 | 0 | 1 |
| Common Buzzard Buteo buteo | European Bee-eater Merops apiaster | 1 | 1 | 0 |
| American Barn Owl Tyto furcata | Lesser Grey Shrike Lanius minor | 1 | 1 | 0 |
| European Bee-eater Merops apiaster | Red-backed Shrike Lanius collurio | 1 | 0 | 1 |
| European Bee-eater Merops apiaster | Fieldfare Turdus pilaris | 1 | 1 | 0 |
| Red-backed Shrike Lanius collurio | Eurasian Jay Garrulus glandarius | 1 | 0 | 1 |
| Marsh Tit Poecile palustris | Yellowhammer Emberiza citrinella | 1 | 0 | 1 |
| Shore Lark Eremophila alpestris | Eurasian Siskin Spinus spinus | 1 | 1 | 0 |
| Greater Short-toed Lark Calandrella brachydactyla | Turkestan Short-toed Lark Alaudala heinei | 1 | 0 | 1 |
| Calandra Lark Melanocorypha calandra | Yellow-browed Warbler Phylloscopus inornatus | 1 | 1 | 0 |
| Calandra Lark Melanocorypha calandra | Eurasian Siskin Spinus spinus | 1 | 0 | 1 |
| Eurasian Skylark Alauda arvensis | Common Starling Sturnus vulgaris | 1 | 1 | 0 |
| Lesser Whitethroat Curruca curruca | Dunnock Prunella modularis | 1 | 0 | 1 |
| Song Thrush Turdus philomelos | Eurasian Blackbird Turdus merula | 1 | 0 | 1 |
| Bohemian Waxwing Bombycilla garrulus | European Goldfinch Carduelis carduelis | 1 | 0 | 1 |
| Brambling Fringilla montifringilla | Yellowhammer Emberiza citrinella | 1 | 1 | 0 |