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 |
|---|---|---|---|---|
| Long-tailed Skua Stercorarius longicaudus | Pomarine Skua Stercorarius pomarinus | 1 | 0 | 1 |
| Red-billed Tropicbird Phaethon aethereus | Red-tailed Tropicbird Phaethon rubricauda | 1 | 0 | 1 |
| Murphy's Petrel Pterodroma ultima | Soft-plumaged Petrel Pterodroma mollis | 1 | 0 | 1 |
| Soft-plumaged Petrel Pterodroma mollis | White-headed Petrel Pterodroma lessonii | 1 | 1 | 0 |
| White-chinned Petrel Procellaria aequinoctialis | Parkinson's Petrel Procellaria parkinsoni | 1 | 0 | 1 |
| Lesser Frigatebird Fregata ariel | Great Frigatebird Fregata minor | 1 | 0 | 1 |
| Red-footed Booby Sula sula | Brown Booby Sula leucogaster | 1 | 1 | 0 |
| Tahiti Monarch Pomarea nigra | Marquesan Monarch Pomarea mendozae | 1 | 0 | 1 |