Aythya valisineria
The Canvasback (*Aythya valisineria*) is an iconic North American diving duck, easily recognized by its distinctive wedge-shaped profile created by a sloping forehead and long bill. Adult males (drakes) are striking, boasting a rich reddish-chestnut head and neck, a black chest, and a brilliant white back and flanks, contrasting with a black rump and tail. Females (hens) are more subdued, with a duller light brown head and neck, a grayish-brown body, and a darker brown chest, though they reta...
Primarily found in large, open freshwater wetlands, marshes, and prairie potholes during breeding season, shifting to expansive brackish or saline estuaries, bays, and lakes during winter. Generally found at low to moderate elevations.
The diet consists predominantly of the rhizomes, tubers, and seeds of submerged aquatic vegetation, particularly Wild Celery (*Vallisneria americana*). They supplement this with aquatic invertebrates like insects, mollusks, and crustaceans, especially during breeding season.
Canvasbacks are diurnal, spending most of their time on open water, often gathering in large rafts during winter. Their foraging strategy involves deep, powerful dives, using their strong legs and specialized bills to root out submerged aquatic vegetation from muddy bottoms. Unlike dabbling ducks...
The Canvasback breeds primarily across the prairie potholes and boreal forest wetlands of western and central North America, extending from Alaska and the Yukon south through the Canadian prairies (Alberta, Saskatchewan, Manitoba) into the northern Great Plains of the United States (Montana, Nort...
Least Concern
- Known as the "King of Ducks" for its prized flavor, particularly in the 19th and early 20th centuries. - Its scientific name, *valisineria*, is a direct nod to *Vallisneria americana*, commonly known as Wild Celery, which historically formed a significant portion of its diet. - Canvasbacks are ...