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Help develop a Bird ID tool!

Canvasback

Aythya valisineria ORDER: ANSERIFORMES FAMILY: ANATIDAE

IUCN Conservation Status: Least Concern

A large diving duck, the Canvasback breeds in prairie potholes and winters on ocean bays. Its sloping profile distinguishes it from other ducks.

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At a GlanceHelp

Measurements
Both Sexes
Length
18.9–22 in
48–56 cm
Wingspan
31.1–35 in
79–89 cm
Weight
30.4–56 oz
862–1588 g
Other Names
  • Morillon à dos blanc (French)
  • Pato coacoxtle (Spanish)

Cool Facts

  • The species name of the Canvasback, Aythya valisineria, comes from Vallisneria americana, or wild celery, whose winter buds and rhizomes are its preferred food during the nonbreeding period.

Habitat


Lake/Pond

Food


Plants

Seeds, buds, leaves, tubers, roots, snails, and insect larvae.

Nesting

Nesting Facts
Clutch Size
5–11 eggs
Egg Description
Greenish drab.
Condition at Hatching
Covered in down and able to leave the nest soon after hatching.
Nest Placement

Floating

Behavior


Surface Dive

Conservation

status via IUCN

Least Concern

Populations have fluctuated widely. Low levels in 1980s put the Canvasback on lists of special concern, but numbers increased greatly in the 1990s.

Credits

  • Mowbray, T. B. 2002. Canvasback (Aythya valisineria). In The Birds of North America, No. 659 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.

Range Map Help

Canvasback Range Map
View dynamic map of eBird sightings