Impact of Red Fox Predation on the Sex Ratio of Prairie Mallards

Table 18: Sex Composition of Adult Ducks Found at Mink Dens

Table 18. Sex compositions of adult ducks found at mink dens (from Eberhardt 1974).

	Males	Females	Percent female
Dabblers^a	31	15	33
Divers^b	4	14	78

^a In decreasing order of abundance: blue-winged teal, mallard, gadwall (A. Strepera), pintail (A. acuta), northern shoveler(A. clypeata), and green-winged teal (A. crecca).
^b In decreasing order of abundance: ruddy duck (Oxyura jamaicensis), redhead (Aythya americana), canvasback (A. valisineria), and lesser scaup (A. affinis).

Previous Section-- Table 17: Sex Composition of Mallards Found on Roads in Eastern North Dakota 1969-74
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Next Section-- Table 19: Apportionment of Mallard Remians Found at Red Fox Dens