Oldsquaw Clangula hyemalis

Identification Tips:

Adult male summer:

Adult male winter:

Immature male:

Adult female winter:

Similar species:

The long central tail feathers of the male are diagnostic. Female is whiter overall, especially on the head, than other sealoving ducks. In flight, the dark wings are only also found in scoters and Harlequin Duck but they have darker heads.