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 |
|---|---|---|---|---|
| Bare-eyed Pigeon Patagioenas corensis | Eared Dove Zenaida auriculata | 1 | 0 | 1 |
| White-tipped Dove Leptotila verreauxi | Eared Dove Zenaida auriculata | 1 | 1 | 0 |
| Common Nighthawk Chordeiles minor | Blue-tailed Emerald Chlorostilbon mellisugus | 1 | 1 | 0 |
| American Oystercatcher Haematopus palliatus | Semipalmated Plover Charadrius semipalmatus | 1 | 1 | 0 |
| Whimbrel Numenius phaeopus | Wilson's Snipe Gallinago delicata | 1 | 0 | 1 |
| Short-billed Dowitcher Limnodromus griseus | Spotted Sandpiper Actitis macularius | 1 | 0 | 1 |
| Greater Yellowlegs Tringa melanoleuca | Stilt Sandpiper Calidris himantopus | 1 | 0 | 1 |
| Sanderling Calidris alba | White-rumped Sandpiper Calidris fuscicollis | 1 | 1 | 0 |
| Sanderling Calidris alba | Western Sandpiper Calidris mauri | 1 | 0 | 1 |
| Pectoral Sandpiper Calidris melanotos | Semipalmated Sandpiper Calidris pusilla | 1 | 1 | 0 |
| Laughing Gull Leucophaeus atricilla | Black Skimmer Rynchops niger | 1 | 0 | 1 |
| Gull-billed Tern Gelochelidon nilotica | Roseate Tern Sterna dougallii | 1 | 0 | 1 |
| Common Tern Sterna hirundo | Crested Caracara Caracara plancus | 1 | 1 | 0 |
| Brown Pelican Pelecanus occidentalis | Black-crowned Night Heron Nycticorax nycticorax | 1 | 1 | 0 |
| Tricoloured Heron Egretta tricolor | Green Heron Butorides virescens | 1 | 1 | 0 |
| American Barn Owl Tyto furcata | American Kestrel Falco sparverius | 1 | 1 | 0 |
| Sand Martin Riparia riparia | Barn Swallow Hirundo rustica | 1 | 1 | 0 |
| Tropical Mockingbird Mimus gilvus | Veery Catharus fuscescens | 1 | 0 | 1 |
| Northern Waterthrush Parkesia noveboracensis | Yellow Warbler Setophaga petechia | 1 | 0 | 1 |
| Hooded Warbler Setophaga citrina | Northern Parula Setophaga americana | 1 | 0 | 1 |