Ring-necked duck Aythya collaris


Identification Tips:

Adult male alternate:

 

Adult male basic:

Adult female:

Similar species:

Adult males can be distinguished from Scaup by different bill pattern, black back and grayish flanks. Female can be distinguished from female scaup by black tip on bill, and lack of distinct white patch on face. Female-plumage birds are distinguished from female-plumage Redheads by colder brown plumage, contrasting gray-brown face, and peaked crown.

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