Male – The male White-winged Scoter has an all-black plumage with a white crescent patch below the white eye, a black beak with yellow-orange sides from the nostrils to the tip and sometimes a black nail, a knob at base of the beak, a white speculum, and reddish-orange legs and feet. The male American White-winged Scoter (Melanitta Deglandi Deglandi) has browner flanks, mostly dark-yellow beak, and smaller knob on its beak than the Asian White-winged Scoter which has a mostly orange-yellow beak and very tall knob at the base of the beak.
Female – The female has a dark-brown plumage, brown eyes, dark-grey beak, and white patches near the beak and ear coverts.
Size: – Typical Adult is 19-24 inches.
Food: – Mainly molluscs and crustaceans, small fish, aquatic insects, larvae and also aquatic plants.
Habitat: – Freshwater lakes, and pools in arctic tundra, and boreal forest, wintering along the coast. It breeds in the far north of Asia and also in North America. The Asian sub-species winters further south into China and the American sub-species winters on the Great Lakes, and the coasts of southern Canada, and the USA.
Breeding Season: – Begins late May to June.
Eggs: – 5 to 11 (Cream, pinkish or pale buff color).
Notes: – The White-winged Scoter is a large sea duck which form large flocks over coastal waters during the winter. There are two sub-species: the American White-winged Scoter (Melanitta Deglandi Deglandi),and the Asian White-winged Scoter (Melanitta Deglandi Stejnegeri).