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 |
|---|---|---|---|---|
| American Golden Plover Pluvialis dominica | Northern Lapwing Vanellus vanellus | 1 | 1 | 0 |
| Siberian Sand Plover Anarhynchus mongolus | Mountain Plover Anarhynchus montanus | 1 | 1 | 0 |
| American Woodcock Scolopax minor | Grey Phalarope Phalaropus fulicarius | 1 | 1 | 0 |
| Black Guillemot Cepphus grylle | Razorbill Alca torda | 1 | 0 | 1 |
| California Gull Larus californicus | Brown Noddy Anous stolidus | 1 | 0 | 1 |
| Winter Wren Troglodytes hiemalis | Marsh Wren Cistothorus palustris | 1 | 0 | 1 |
| Sedge Wren Cistothorus stellaris | Smith's Longspur Calcarius pictus | 1 | 0 | 1 |
| House Finch Haemorhous mexicanus | European Greenfinch Chloris chloris | 1 | 0 | 1 |
| Bachman's Warbler Vermivora bachmanii | Blue-winged Warbler Vermivora cyanoptera | 1 | 1 | 0 |
| Canada Warbler Cardellina canadensis | Wilson's Warbler Cardellina pusilla | 1 | 0 | 1 |
| Indigo Bunting Passerina cyanea | Dickcissel Spiza americana | 1 | 1 | 0 |