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 Arctic Skua Stercorarius parasiticus 3 0 3
Arctic Skua Stercorarius parasiticus Pomarine Skua Stercorarius pomarinus 2 2 0
Northern Shoveler Spatula clypeata Sand Martin Riparia riparia 1 0 1
European Storm-Petrel Hydrobates pelagicus Band-rumped Storm-Petrel Hydrobates castro 1 1 0
Sooty Shearwater Ardenna grisea Barolo Shearwater Puffinus baroli 1 1 0
Village Weaver Ploceus cucullatus Northern Red Bishop Euplectes franciscanus 1 0 1