WHITE WINGED SCOTER immature
Melanitta fusca

Scoters are large, mostly black or dark gray sea ducks, and the White-winged Scoter is the largest of the three species. All plumages have a white wing-patch, which distinguishes the White-winged Scoter in flight from the other two scoters, which have solid black wings. The White-winged Scoter can also be distinguished by its sloping forehead and bill, which is less bulbous than that of the others. The adult male is solid black with a white comma around a white eye. Its bill is yellow and has a dark knob at the base. The juvenile and the female have light gray patches in front of and behind their eyes, and are dark gray overall with gray bills.