2015 Population Estimates

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Total Breeding Duck Population Estimates

Total 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 [Melanitta spp.], eiders [Somateria spp. and Polysticta elleri], long- tailed ducks [Clangula hyemalis], mergansers [Mergus spp. and Lophodytes cucullatus], and wood ducks [Aix sponsa]) was 49.5 million birds. This is similar to last year's estimate of 49.2 million, and is 43% higher than the long-term average.

American Wigeon Population Estimates

American Wigeon Population Estimates

The estimate for American wigeon (A. americana; 3.0 ± 0.2 million) was similar to last year's estimate and 17% above the long-term average of 2.6 ± 0.02 million.

Blue-winged Teal Population Estimates

Blue-winged Teal Population Estimates

The estimate of blue-winged teal (A. discors) was 8.5 ± 0.4 million, which was similar to the 20143 estimate and 73% above the long-term average of 4.9 ± 0.04 million.

Canvasback Population Estimates

Canvasback Population Estimates

The canvasback estimate (Aythya valisineria; 0.8 ± 0.06 million) was similar to the 2014 estimate and 30% above the long-term average of 0.6 ± 0.01 million.

Gadwall Population Estimates

Gadwall Population Estimates

Estimated abundance of gadwall (A. strepera; 3.8 ± 0.2 million) was similar to the 2014 estimate and 100% above the long-term average (1.9 ± 0.02 million).

Green-winged Teal Population Estimates

Green-winged Teal Population Estimates

The estimated abundance of green-winged teal (A. crecca) was 4.1 ± 0.3 million, which was 19% above the 2014 estimate and 98% above the long-term average (2.1 ± 0.02 million).

Mallard Population Estimates

Mallard Population Estimates

The estimated mallard (Anas platyrhynchos) abundance was 11.6 ± 0.4 million, which was similar to the 2014 estimate, and 51% above the long-term average of 7.7 ± 0.04 million.

Northern Pintail Population Estimates

Northern Pintail Population Estimates

The estimate for northern pintails (A. acuta; 3.0 ± 0.2 million) was similar to the 2014 estimate and 24% below the long-term average of 4.0 ± 0.04 million.

Northern Shoveler Population Estimates

Northern Shoveler Population Estimates

The northern shoveler (A. clypeata) estimate was 4.4 ± 0.2 million which was 17% below the 2014 estimate and 75% above the long-term average of 2.5 ± 0.02 million .

Redhead Population Estimates

Redhead Population Estimates

Redhead abundance (Aythya americana; 1.2 ± 0.1 million) was similar to the 2014 estimate and 71% above the long-term average of 0.7 ± 0.01 million.

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