Melanitta deglandi

The White-winged Scoter is a large sea duck that breeds on northern freshwater lakes and spends much of the rest of the year on coastal water. It dives for mussels, clams and other bottom-dwelling prey, often in compact flocks. The white wing patch can flash conspicuously in flight even when the rest of the bird appears almost black.
Locations where this species is supported by a dated first record, an unambiguous single-place outing or a reviewed assignment.