Medium-sized diving ducks, Barrow's goldeneyes are the expected of the two goldeneye species in Oregon in the summer, but are typically less numerous in the winter.
Drakes show graceful patterns of black and white, purple glossed head, white crescent-shaped patch between the eye and bill, steep forehead, and short bill. Females and juveniles have a chocolate-brown head, slate-gray back, wings and tail; adult females have a golden bill.
They are the only waterfowl species known to defend winter territories different from breeding territories.
It is uncommon from the Cascades eastward in both breeding season and winter, but it may concentrate in winter at certain favored spots.