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Waterfowl Production on the Woodworth Station
in South-central North Dakota, 1965-1981

Table 18. Percent upland duck nests that occurred in subjectively rated cover,
Woodworth Study Area, 1966-81.

Table 18. Percent of upland duck nests that occurred in subjectively rated cover, Woodworth Study Area, 1966-81.
  Nests Cover quality
Species n Poor Fair Good Excellent
Mallard 324 7 34 42 18
Gadwall 609 1 33 50 16
Northern pintail 183 16 51 24 9
Green-winged teal 53 4 47 36 13
Blue-winged teal 1,958 8 71 18 2
Northern shoveler 169 6 66 27 2
American wigeon 55 2 40 47 11
Lesser scaup 51 4 57 31 8
Total 3,402 7 58 28 7
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