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 |
|---|---|---|---|---|
| Melodious Warbler Hippolais polyglotta | Icterine Warbler Hippolais icterina | 2 | 2 | 0 |
| Eurasian Treecreeper Certhia familiaris | Short-toed Treecreeper Certhia brachydactyla | 2 | 0 | 2 |
| Bar-tailed Godwit Limosa lapponica | Black-tailed Godwit Limosa limosa | 1 | 0 | 1 |
| Common Redshank Tringa totanus | Common Greenshank Tringa nebularia | 1 | 0 | 1 |
| Common Redshank Tringa totanus | Common Redstart Phoenicurus phoenicurus | 1 | 0 | 1 |
| Caspian Gull Larus cachinnans | Caspian Tern Hydroprogne caspia | 1 | 0 | 1 |
| Middle Spotted Woodpecker Dendrocoptes medius | Lesser Spotted Woodpecker Dryobates minor | 1 | 0 | 1 |
| Red-footed Falcon Falco vespertinus | Eurasian Hobby Falco subbuteo | 1 | 1 | 0 |
| Woodlark Lullula arborea | Eurasian Skylark Alauda arvensis | 1 | 0 | 1 |
| Eurasian Skylark Alauda arvensis | Fieldfare Turdus pilaris | 1 | 0 | 1 |
| Booted Warbler Iduna caligata | Icterine Warbler Hippolais icterina | 1 | 1 | 0 |
| Marsh Warbler Acrocephalus palustris | Common Reed Warbler Acrocephalus scirpaceus | 1 | 1 | 0 |
| Wood Warbler Phylloscopus sibilatrix | Willow Warbler Phylloscopus trochilus | 1 | 1 | 0 |
| Wood Warbler Phylloscopus sibilatrix | Common Chiffchaff Phylloscopus collybita | 1 | 1 | 0 |
| Meadow Pipit Anthus pratensis | Tree Pipit Anthus trivialis | 1 | 0 | 1 |
| Meadow Pipit Anthus pratensis | Brambling Fringilla montifringilla | 1 | 1 | 0 |
| Meadow Pipit Anthus pratensis | European Greenfinch Chloris chloris | 1 | 1 | 0 |
| Common Chaffinch Fringilla coelebs | European Greenfinch Chloris chloris | 1 | 1 | 0 |
| Hawfinch Coccothraustes coccothraustes | Eurasian Bullfinch Pyrrhula pyrrhula | 1 | 1 | 0 |
| Common Linnet Linaria cannabina | Eurasian Siskin Spinus spinus | 1 | 0 | 1 |
| Cirl Bunting Emberiza cirlus | Yellowhammer Emberiza citrinella | 1 | 1 | 0 |
| Bewick's Swan Cygnus columbianus | Whooper Swan Cygnus cygnus | 1 | 1 | 0 |
| Common Reed Bunting Emberiza schoeniclus | Little Bunting Emberiza pusilla | 1 | 0 | 1 |
| Goosander Mergus merganser | Red-breasted Merganser Mergus serrator | 1 | 1 | 0 |