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

Table 30. Densities of upland nests and ducklings hatched in three habitats,
Woodworth Study Area, 1966-81.


Table 30. Densities of upland nests and ducklings hatched in three habitats, Woodworth Study Area, 1966-81.
Habitat Ha searched Nests found Nest density (nests per 40.5 ha) Eggs hatched Ducklings per 40.5 ha
Native prairie 5,801 2,292 16.2 6,692 47.3
Seeded grasslands 1,787 1,455 33.4 4,585 105.2
Croplands 877 74 3.5 153 7.2
Total 8,464 3,821 18.5 11,430 55.3

Previous Section -- Table 29.
Return to Contents
Return to List of Tables
Next Section -- Table 31.