06 May, 2014
Scientific Name: Aythya marila
Range / Habitat: Breeds on shallow, small lakes, rivers and pools in tundra and wooded tundra zones at high latitudes throughout the northern hemisphere. Winters mainly on coasts at lower latitudes, though can be found on inland lakes, particularly in central flyway of US.
Field Notes: Quite similar to Lesser Scaup and can overlap in habitat and the much discussed head colour. Overall, smooth head, larger black nail in bill, and white extending further down sides.
Personal Notes: We finally saw both scaups to compare on Albert Lea Lake in southern Minnesota. Only then did we realize the bottom photo (which we had taken at an aviary in Utah) was likely of the Greater Scaup.