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

Table 17. Percent of upland duck nests occurring by vegetation types,
Woodworth Study Area, 1966-81.

Table 17. Percent of upland duck nests occurring by vegetation types, Woodworth Study Area, 1966-81.
  Nests Vegetation type
Species n Marsh Brush Forb Grass
Mallard 329 5 21 27 34
Gadwall 611 1 30 33 22
Northern pintail 183 2 14 30 45
Green-winged teal 54 0 33 26 39
Blue-winged teal 1,973 1 8 11 67
Northern shoveler 171 0 4 15 68
American wigeon 55 4 35 31 27
Lesser scaup 53 9 0 8 75
Total 3,429 1 14 18 54
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