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
Eurasian Wigeon Mareca penelope Northern Pintail Anas acuta 1 1 0
Green-throated Carib Eulampis holosericeus Antillean Crested Hummingbird Orthorhyncus cristatus 1 1 0
Pied-billed Grebe Podilymbus podiceps American Moorhen Gallinula galeata 1 0 1
Lesser Yellowlegs Tringa flavipes Willet Tringa semipalmata 1 0 1
Sandwich Tern Thalasseus sandvicensis Royal Tern Thalasseus maximus 1 1 0