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
Clay-coloured Sparrow Spizella pallida American Tree Sparrow Spizelloides arborea 1 1 0
Clay-coloured Sparrow Spizella pallida Seaside Sparrow Ammospiza maritima 1 0 1
Field Sparrow Spizella pusilla Vesper Sparrow Pooecetes gramineus 1 1 0