Aythya

Genus · 5 species with a result in Ohio

Greater Scaup (Aythya marila)

Greater ScaupAythya marila · BirdsPhoto © brian stahls · CC BY-NC 4.0Late November to early May, middle week Feb 15–21

Redhead (Aythya americana)

RedheadAythya americana · BirdsPhoto © Greg Lasley · CC BY-NC 4.0Late November to mid-April, middle week Feb 15–21

Ring-necked Duck (Aythya collaris)

Ring-necked DuckAythya collaris · BirdsEarly in its seasonPhoto © lonnyholmes · CC BY-NC 4.0Early November to mid-April, middle week Mar 8–14

Lesser Scaup (Aythya affinis)

Lesser ScaupAythya affinis · BirdsPhoto © Ad Konings · CC BY-NC 4.0Mid-December to early May, middle week Mar 15–21

Canvasback (Aythya valisineria)

CanvasbackAythya valisineria · BirdsPhoto © Jerry Oldenettel · CC BY-NC-SA 4.0

Missing records do not mean a species is absent.