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Wildlife Monographs

Red Fox Predation on Breeding Ducks
in Midcontinent North America

Tables


Table 3. Percentage species compositions of 1,057 dabbling ducks identified at 501 red fox dens in Barnes, Kidder, and Stutsman counties, North Dakota, relative to population compositions.a,b

1969 1970 1971 1972 1973 Avg.
Dens Pop. Dens Pop. Dens Pop. Dens Pop. Dens Pop. Dens Pop.
Identified ducks at dens (N) 348   260   139   203   107      
Species Composition (%)
Mallard 14.4 13.0 20.8 19.4 25.2 17.6 21.2 14.4 29.0 24.3 22.1 17.7
Northern pintail 27.0 22.3 23.9 21.8 25.2 12.8 24.1 22.2 17.8 14.5 23.6 18.7
Northern shoveler 14.4 8.3 11.2 11.6 7.2 6.1 7.4 11.4 6.5 7.4 9.3 9.0
Blue-winged teal 31.0 38.0 31.5 26.2 33.1 44.7 30.0 30.6 23.4 35.2 29.8 34.9
Gadwall 7.2 13.3 8.1 16.7 8.6 16.6 15.3 16.0 18.7 17.0 11.6 15.9
American wigeon 2.3 2.6 1.5 1.5 0.0 1.0 0.5 2.8 1.9 0.5 1.2 1.7
Green-winged teal 3.7 2.5 3.1 2.8 0.7 1.1 1.5 2.5 2.8 1.3 2.4 2.0
Pop.= Population


aOne hundred thirty-four unidentified dabbling ducks (abount one-half teals) were excluded from this analysis. bPopulation compositions from USFWS Breeding Pair Surveys for Stratum 46.

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