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Wildlife Monographs

Red Fox Predation on Breeding Ducks
in Midcontinent North America

Tables


Table 1. Species and numbers of adult ducks found at red fox rearing dens in 8 sample areas of the midcontinent area, 1968-73.

North Dakota South Dakota
Iowa Manit. Minn.-
Wis.
Nebr. East
riverb
West
riverb
East
rivera
West
riverb
All areas
Years 69-70 68-70 68-70 68-70 68-73 68-70 68-70 68-70 68-73
Fox dens (N) 193 8 52 33 648 91 109 298 1432
Dabbling ducks (N)
Mallard 2 12 5 21 274 9 21 67 411
Northern pintail         325 1 10 22 358
Northern shoveler   2 1   151   4 2 160
Blue-winged teal   7 4   458 2 4 3 478
Gadwall     1   131 1 3 2 138
American wigeon     1   27   1   29
Green-winged teal   1     41 1 2 3 48
Unidentifiedc   1 1   162 2 6 4 176
Subtotal 2 23 13 21 1569 16 51 103 1798
Diving ducks   8 1   39       48
Unidentified ducks   3     5     3 11
All ducks 2 34 14 21 1613 16 51 106 1857


aEast of the Missouri River
bWest of the Missouri River
cIncludes 1 wood duck from eastern North Dakota

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