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 |
|---|---|---|---|---|
| Least Grebe Tachybaptus dominicus | Black-necked Grebe Podiceps nigricollis | 1 | 0 | 1 |
| White-breasted Nuthatch Sitta carolinensis | Brown Creeper Certhia americana | 1 | 0 | 1 |
| White-throated Thrush Turdus assimilis | Rufous-backed Robin Turdus rufopalliatus | 1 | 1 | 0 |
| Stripe-headed Sparrow Peucaea ruficauda | Bridled Sparrow Peucaea mystacalis | 1 | 0 | 1 |
| Yellow-breasted Chat Icteria virens | Yellow-winged Cacique Cassiculus melanicterus | 1 | 1 | 0 |
| Brown-headed Cowbird Molothrus ater | Great-tailed Grackle Quiscalus mexicanus | 1 | 1 | 0 |