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 |
|---|---|---|---|---|
| Eurasian Jay Garrulus glandarius | Common Magpie Pica pica | 2 | 2 | 0 |
| Eurasian Nuthatch Sitta europaea | Eurasian Wren Troglodytes troglodytes | 2 | 0 | 2 |
| Common Nightingale Luscinia megarhynchos | Common Redstart Phoenicurus phoenicurus | 2 | 2 | 0 |
| Common Redstart Phoenicurus phoenicurus | European Stonechat Saxicola rubicola | 2 | 1 | 1 |
| Black Redstart Phoenicurus ochruros | European Stonechat Saxicola rubicola | 2 | 1 | 1 |
| Common Chaffinch Fringilla coelebs | European Serin Serinus serinus | 2 | 0 | 2 |
| Rock Dove Columba livia | Collared Dove Streptopelia decaocto | 1 | 1 | 0 |
| Alpine Swift Tachymarptis melba | Common Swift Apus apus | 1 | 1 | 0 |
| European Honey-buzzard Pernis apivorus | Common Buzzard Buteo buteo | 1 | 0 | 1 |
| Eurasian Golden Oriole Oriolus oriolus | Red-backed Shrike Lanius collurio | 1 | 0 | 1 |
| Eurasian Jay Garrulus glandarius | European Serin Serinus serinus | 1 | 1 | 0 |
| Eurasian Jay Garrulus glandarius | Eurasian Jackdaw Coloeus monedula | 1 | 0 | 1 |
| Coal Tit Periparus ater | Marsh Tit Poecile palustris | 1 | 0 | 1 |
| Melodious Warbler Hippolais polyglotta | Sedge Warbler Acrocephalus schoenobaenus | 1 | 0 | 1 |
| Western House Martin Delichon urbicum | Italian Sparrow Passer italiae | 1 | 1 | 0 |
| Western Bonelli's Warbler Phylloscopus bonelli | Eastern Subalpine Warbler Curruca cantillans | 1 | 1 | 0 |
| Western Bonelli's Warbler Phylloscopus bonelli | Common Chiffchaff Phylloscopus collybita | 1 | 0 | 1 |
| Common Chiffchaff Phylloscopus collybita | Sardinian Warbler Curruca melanocephala | 1 | 0 | 1 |
| Sardinian Warbler Curruca melanocephala | Eastern Subalpine Warbler Curruca cantillans | 1 | 1 | 0 |
| Woodlark Lullula arborea | Common Whitethroat Curruca communis | 1 | 0 | 1 |
| Goldcrest Regulus regulus | Common Firecrest Regulus ignicapilla | 1 | 0 | 1 |
| Eurasian Nuthatch Sitta europaea | Short-toed Treecreeper Certhia brachydactyla | 1 | 0 | 1 |
| Common Starling Sturnus vulgaris | Eurasian Blackbird Turdus merula | 1 | 0 | 1 |
| Eurasian Blackbird Turdus merula | Common Chaffinch Fringilla coelebs | 1 | 1 | 0 |
| Spotted Flycatcher Muscicapa striata | Meadow Pipit Anthus pratensis | 1 | 1 | 0 |
| Red Kite Milvus milvus | Common Nightingale Luscinia megarhynchos | 1 | 0 | 1 |
| Black Redstart Phoenicurus ochruros | Eurasian Siskin Spinus spinus | 1 | 1 | 0 |
| Black Redstart Phoenicurus ochruros | Blue Rock Thrush Monticola solitarius | 1 | 0 | 1 |
| European Stonechat Saxicola rubicola | Eurasian Siskin Spinus spinus | 1 | 1 | 0 |
| Melodious Warbler Hippolais polyglotta | Northern Wheatear Oenanthe oenanthe | 1 | 0 | 1 |
| Black Redstart Phoenicurus ochruros | Northern Wheatear Oenanthe oenanthe | 1 | 0 | 1 |
| Blue Rock Thrush Monticola solitarius | Dunnock Prunella modularis | 1 | 0 | 1 |
| Italian Sparrow Passer italiae | Cirl Bunting Emberiza cirlus | 1 | 1 | 0 |
| Dunnock Prunella modularis | Eurasian Tree Sparrow Passer montanus | 1 | 0 | 1 |
| Italian Sparrow Passer italiae | Eurasian Tree Sparrow Passer montanus | 1 | 0 | 1 |
| Marsh Tit Poecile palustris | Grey Wagtail Motacilla cinerea | 1 | 0 | 1 |
| Common Whitethroat Curruca communis | Grey Wagtail Motacilla cinerea | 1 | 0 | 1 |
| Eurasian Wren Troglodytes troglodytes | Grey Wagtail Motacilla cinerea | 1 | 0 | 1 |
| Eurasian Tree Sparrow Passer montanus | Meadow Pipit Anthus pratensis | 1 | 0 | 1 |
| Italian Sparrow Passer italiae | European Greenfinch Chloris chloris | 1 | 0 | 1 |
| European Greenfinch Chloris chloris | European Goldfinch Carduelis carduelis | 1 | 1 | 0 |
| Italian Sparrow Passer italiae | European Goldfinch Carduelis carduelis | 1 | 0 | 1 |
| Eurasian Sparrowhawk Accipiter nisus | European Serin Serinus serinus | 1 | 0 | 1 |
| European Goldfinch Carduelis carduelis | Eurasian Siskin Spinus spinus | 1 | 0 | 1 |
| European Serin Serinus serinus | Eurasian Siskin Spinus spinus | 1 | 0 | 1 |
| Eurasian Blackcap Sylvia atricapilla | Cirl Bunting Emberiza cirlus | 1 | 0 | 1 |
| Eurasian Tree Sparrow Passer montanus | Cirl Bunting Emberiza cirlus | 1 | 0 | 1 |
| European Greenfinch Chloris chloris | Cirl Bunting Emberiza cirlus | 1 | 0 | 1 |
| Eurasian Siskin Spinus spinus | Cirl Bunting Emberiza cirlus | 1 | 0 | 1 |