2013 Population Estimates

Canvasback Population Estimates

Canvasback Population Estimates

The canvasback estimate (A. valisineria; 0.8 ± 0.06 million) was similar to the 2012 estimate and 37% above the long-term average of 0.6 ± 0.01 million.

2014 Breeding Duck Population Estimates

In the traditional survey area, which includes strata 1-18, 20-50, and 75-77, the total duck population estimate (excluding scoters, eiders, long-tailed ducks, mergansers, and wood ducks) was 49.2 million birds. This represents an 8% increase over last year's estimate of 45.6 million, and is 43% higher than the long-term average.

Figure B.1: Strata and transects of the Waterfowl Breeding Population and Habitat Survey (Yellow = traditional survey area, green = eastern survey area).

Strata and transects of the Waterfowl Breeding Population and Habitat Survey (Yellow = traditional survey area, green = eastern survey area).

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