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Canvasback, Hamilton Greenwood
Photo © Hamilton Greenwood

Photo: Hamilton Greenwood
Breeding evidence - Canvasback
Breeding evidence
Relative abundance - Canvasback
Relative abundance
Probability of observation - Canvasback
Probability of observation

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Canvasback
Aythya valisineria

Click on plot to view table of mean abundance
Conserv. status:
SRank S5B
Number of squares
ConfirmedProbablePossiblePoint counts
133 329 342 166
Long-term BBS trends
RegionYearsTrend (conf. interv.) Reliab.
Saskatchewan1970 - 2022 -0.336 (-2.02 - 1.11)High
Canada1970 - 2022 -0.174 (-1.53 - 1.16)High

Mean abundance (number of birds detected per 5 min. point count) and percentage of squares occupied by region

Bird Conservation Regions [abund. plot] [%squares plot]
Arctic Plains and MountainsBoreal Hardwood TransitionBoreal Softwood Shield
Abund.%SquaresAbund.%SquaresAbund.%Squares
      0.00%
Boreal Taiga PlainsPrairie PotholesTaiga Shield and Hudson Plains
Abund.%SquaresAbund.%SquaresAbund.%Squares
0.014% 0.032% 0.00%

Atlas Results

Atlas results coming soon

Note: During all years of the Saskatchewan Breeding Bird Atlas drought conditions persisted and the Atlas range maps for all waterfowl, waterbirds, and wetland-associated species should be viewed as characteristic of distribution and abundance during dry conditions. Read the full drought statement here.

Excerpts Adapted from the Birds of Saskatchewan:

The Canvasback is one of the most powerful ducks in flight, capable of reaching speeds up to 115 km/h. Skilled in the water as well as in the air, it can dive to depths of 9 m (Mowbray 2002). Canvasbacks breed from central Alaska, Yukon, and western Northwest Territories south through interior British Columbia and the Prairie Provinces, with the prairies the center of their breeding range. Almost unknown in eastern Canada except during migration, they winter mostly on both Atlantic and Pacific Coasts, and the Gulf of Mexico.

Deep-water marshes, permanent sloughs, and the sheltered bays of large lakes, especially in the parkland region, are the summer haunts of Canvasbacks (Smith 1996). During migration, they may be found on all types of water bodies, but the deeper wetlands are much preferred.

Common in the parklands, mixed-grass prairie, and Cumberland Delta, but uncommon in the rest of the southern boreal region. It is either an uncommon breeder or transient on the shortgrass prairie (Smith 1996). During the late 1950s, Canvasback populations dropped to worrisome low levels because hunting pressure was greater on Canvasbacks and Redheads than on other waterfowl (Houston 1958e). Population numbers have improved since.

Original text by Pauline Bloom. Text adapted by Daniel J. Sawatzky

Read more about the Canvasback in the Birds of Saskatchewan here.

LeeAnn M. Latremouille

Recommended citation: Latremouille, L. M. 2025. Canvasback in Latremouille, L. M., S. L. Van Wilgenburg, C. B. Jardine, D. Lepage, A. R. Couturier, D. Evans, D. Iles, and K. L. Drake (eds.). 2025. The Atlas of the Breeding Birds of Saskatchewan, 2017-2021. Birds Canada. Saskatoon, Saskatchewan https://sk.birdatlas.ca/accounts/speciesaccount.jsp?sp=CANV&lang=en [09 Nov 2025]

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