Common scaup of North America, males have purplish heads
English: lesser scaup, lesser scaup duck, lake duck, Aythya affinis
aythya_affinisEnglish
Aythya affinis, lake duck, lesser scaup, lesser scaup duck
Aythya affinis, lake duck, lesser scaup, lesser scaup duck
English: lesser scaup, lesser scaup duck, lake duck, Aythya affinis