Canvasback
SPCanvasback (Aythya valisineria), known in Korean as 큰흰죽지 has eligible documented records in 1 of South Korea's 17 first-level administrative regions in the current KoreAves evidence projection. The current supporting record sources are GBIF and EcoBank. These records document evidence coverage; regions without eligible records are not interpreted as biological absence, and the counts are not population or abundance estimates.