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

Table 10: Sex Ratios of Adult Mallards Found at Red Fox Dens


Table 10. Sex ratios of adult mallards found at red fox rearing dens in eastern North Dakota.
Year
Unknown
Male
Female
Percentage female
1969
15
13
43
76.8
1970
15
12
51
81.0
1971
9
6
20
76.9
1972
7
9
26
74.3
1973
2
4
26
86.7
Total
48
44
166
79.8

Previous Section-- Table 9: Number of Dens Used by Red Fox Families to Rear Pups
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Next Section-- Table 11: Estimated Red Fox Predation Rates on Mallards

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