Description
 The canvasback is a diving duck that is found only in North America. It is 13-19 inches in length with a wingspan of 34 inches. The male has a grayish-white body, a black chest and tail, a copper colored head and neck, and red eyes. The female has a speckled gray body with a brown head and neck and brown eyes. The canvasback has a long, sloping forehead and a long, pointed black bill.
Range
 The canvasback breeds from Alaska south and east to Nebraska and Minnesota. It winters in on the the Great Lakes, on the Atlantic, Pacific, and Gulf Coasts, and in Mexico.
Habitat
During the breeding season, the canvasback is found in freshwater marshes; prairie potholes, and swamps. It winters on lakes, bays, and estuaries.
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Diet
 The canvasback is a diving duck and it eats green aquatic vegetation. One of its favorite foods is wild celery ( Valisneria americana), in fact, that is where it gets its Latin name! It also eats pondweeds, water lilies, sedges, mollusks, small crustaceans, small fish, and insects.
Life Cycle
 Male and female canvasbacks form mating pairs before they reach their breeding grounds. The female lays 7-10 olive-green eggs in a nest of reeds and grass lined with down. The nest is made in the marsh and is attached to dense vegetation. The female incubates the eggs and cares for the young. The eggs hatch in about 24 days and the ducklings hatch when they are 56-70 days old.
Behavior
 During the non-breeding season, the canvasback gathers in large flocks or rafts on the water. The canvasback is a very good flier and can reach speeds of up to 70 mph. When they are migrating, they fly in large V-shaped formations. The canvasback has to take a running start on the surface of the water before it becomes airborne.
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