Read about the Scaup and Mallard Ducks!
Greater scaup migrate across the boreal forests of Canada prior to reaching their wintering grounds along the Atlantic coast or from Alaska to their wintering grounds along the Pacific coast.
Mallard Duck Plumage
The mallard usually has the plumage shown in the picture above, however, they go through a period called eclipse plumage when they molt after breeding.
When their primary feathers are molting, they are largely flightless and tend to be very reclusive. Mallard drakes in eclipse plumage still have the green iridescent head, but it is much scruffier and mixed with dark or buff feathers. While the overall color of an eclipse mallard's breast remains the same chestnut color, in this type of plumage it will be mottled with a spotted or scaled pattern similar to the pattern of a female mallard's more camouflaged plumage. Overall, mallards in eclipse plumage often look scruffy or tattered. Some of their feathers may be missing while others have size differences that keep them from aligning smoothly. As the bird's old, worn feathers are replaced with fresh feathers, the plumage will smooth out.