Classification
Animalia [kingdom]Chordata [phylum]
Aves [class]
Anseriformes [order]
Anatidae [family]
Aythya [genus]
Genus Aythya bevat de volgende taxa:
Aythya ferina (Common Pochard) [species]
Aythya fuligula (Tufted Duck) [species]
Aythya marila (Greater Scaup) [species]
Aythya nyroca (Ferruginous Duck) [species]