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 |
|---|---|---|---|---|
| Rough-legged Buzzard Buteo lagopus | Common Buzzard Buteo buteo | 4 | 4 | 0 |
| Common Buzzard Buteo buteo | Long-legged Buzzard Buteo rufinus | 4 | 2 | 2 |
| Lesser Spotted Eagle Clanga pomarina | Steppe Eagle Aquila nipalensis | 2 | 1 | 1 |
| Greater Spotted Eagle Clanga clanga | Golden Eagle Aquila chrysaetos | 2 | 1 | 1 |
| Lesser Spotted Eagle Clanga pomarina | Booted Eagle Hieraaetus pennatus | 2 | 0 | 2 |
| Booted Eagle Hieraaetus pennatus | Long-legged Buzzard Buteo rufinus | 2 | 2 | 0 |
| Imperial Eagle Aquila heliaca | Golden Eagle Aquila chrysaetos | 2 | 1 | 1 |
| Hen Harrier Circus cyaneus | Montagu's Harrier Circus pygargus | 2 | 1 | 1 |
| Bonelli's Eagle Aquila fasciata | Eurasian Goshawk Astur gentilis | 2 | 0 | 2 |
| White-tailed Eagle Haliaeetus albicilla | Long-legged Buzzard Buteo rufinus | 2 | 0 | 2 |
| Eastern Olivaceous Warbler Iduna pallida | Icterine Warbler Hippolais icterina | 2 | 2 | 0 |
| Greater White-fronted Goose Anser albifrons | Long-tailed Tit Aegithalos caudatus | 1 | 1 | 0 |
| Gadwall Mareca strepera | Eurasian Wigeon Mareca penelope | 1 | 0 | 1 |
| Common Pochard Aythya ferina | Ferruginous Duck Aythya nyroca | 1 | 0 | 1 |
| Great Crested Grebe Podiceps cristatus | Black-winged Stilt Himantopus himantopus | 1 | 1 | 0 |
| Spotted Crake Porzana porzana | Baillon's Crake Zapornia pusilla | 1 | 0 | 1 |
| Demoiselle Crane Grus virgo | Dalmatian Pelican Pelecanus crispus | 1 | 1 | 0 |
| Sociable Lapwing Vanellus gregarius | Caspian Plover Anarhynchus asiaticus | 1 | 0 | 1 |
| Curlew Sandpiper Calidris ferruginea | Temminck's Stint Calidris temminckii | 1 | 1 | 0 |
| Arctic Skua Stercorarius parasiticus | Pomarine Skua Stercorarius pomarinus | 1 | 0 | 1 |
| Pallas's Gull Ichthyaetus ichthyaetus | Audouin's Gull Ichthyaetus audouinii | 1 | 1 | 0 |
| Whiskered Tern Chlidonias hybrida | White-winged Black Tern Chlidonias leucopterus | 1 | 0 | 1 |
| Eurasian Bittern Botaurus stellaris | Little Bittern Botaurus minutus | 1 | 0 | 1 |
| Little Bittern Botaurus minutus | Black-crowned Night Heron Nycticorax nycticorax | 1 | 1 | 0 |
| Pied Avocet Recurvirostra avosetta | Eurasian Spoonbill Platalea leucorodia | 1 | 0 | 1 |
| Short-toed Eagle Circaetus gallicus | Common Buzzard Buteo buteo | 1 | 1 | 0 |
| Lesser Spotted Eagle Clanga pomarina | Rough-legged Buzzard Buteo lagopus | 1 | 1 | 0 |
| Lesser Spotted Eagle Clanga pomarina | Greater Spotted Eagle Clanga clanga | 1 | 0 | 1 |
| Booted Eagle Hieraaetus pennatus | Golden Eagle Aquila chrysaetos | 1 | 1 | 0 |
| Booted Eagle Hieraaetus pennatus | Steppe Eagle Aquila nipalensis | 1 | 0 | 1 |
| Lesser Spotted Eagle Clanga pomarina | Imperial Eagle Aquila heliaca | 1 | 0 | 1 |
| Booted Eagle Hieraaetus pennatus | Imperial Eagle Aquila heliaca | 1 | 0 | 1 |
| Lesser Spotted Eagle Clanga pomarina | Golden Eagle Aquila chrysaetos | 1 | 0 | 1 |
| Booted Eagle Hieraaetus pennatus | Bonelli's Eagle Aquila fasciata | 1 | 0 | 1 |
| Bonelli's Eagle Aquila fasciata | Rough-legged Buzzard Buteo lagopus | 1 | 1 | 0 |
| Western Marsh Harrier Circus aeruginosus | Montagu's Harrier Circus pygargus | 1 | 1 | 0 |
| Hen Harrier Circus cyaneus | Pallid Harrier Circus macrourus | 1 | 1 | 0 |
| Pallid Harrier Circus macrourus | Montagu's Harrier Circus pygargus | 1 | 1 | 0 |
| Levant Sparrowhawk Tachyspiza brevipes | Eurasian Sparrowhawk Accipiter nisus | 1 | 1 | 0 |
| Eurasian Sparrowhawk Accipiter nisus | Eurasian Goshawk Astur gentilis | 1 | 1 | 0 |
| Black Kite Milvus migrans | Rough-legged Buzzard Buteo lagopus | 1 | 0 | 1 |
| Lesser Spotted Eagle Clanga pomarina | Long-legged Buzzard Buteo rufinus | 1 | 0 | 1 |
| Greater Spotted Eagle Clanga clanga | Great Spotted Woodpecker Dendrocopos major | 1 | 0 | 1 |
| Woodlark Lullula arborea | Eurasian Skylark Alauda arvensis | 1 | 1 | 0 |
| Eastern Olivaceous Warbler Iduna pallida | Aquatic Warbler Acrocephalus paludicola | 1 | 1 | 0 |
| Sand Martin Riparia riparia | Barn Swallow Hirundo rustica | 1 | 1 | 0 |
| Yellow-browed Warbler Phylloscopus inornatus | Hume's Warbler Phylloscopus humei | 1 | 0 | 1 |
| Meadow Pipit Anthus pratensis | Tree Pipit Anthus trivialis | 1 | 0 | 1 |
| Red-throated Pipit Anthus cervinus | Water Pipit Anthus spinoletta | 1 | 0 | 1 |
| Corn Bunting Emberiza calandra | Yellowhammer Emberiza citrinella | 1 | 1 | 0 |
| Pine Bunting Emberiza leucocephalos | Rustic Bunting Emberiza rustica | 1 | 1 | 0 |