Northern Prairie Wildlife Research Center
| Table 12. Fates of 130 over water and 40 upland nests in the Waubay study area, Day County, South Dakota, 1992-1993. | ||||||
| Species | n | Successful | Predated | Flooded | Abandoned | Unknown |
| Over-water nests | ||||||
| Mallard | 25 | 7 | 16 | 0 | 0 | 2 |
| Northern pintail | 2 | 0 | 2 | 0 | 0 | 0 |
| Redhead | 63 | 28 | 17 | 9 | 9 | 0 |
| Canvasback | 17 | 10 | 4 | 3 | 0 | 0 |
| Ruddy duck | 22 | 7 | 7 | 8 | 0 | 0 |
| Total (%) | 129 | 52 (40.0) | 47 (36.2) | 20 (15.4) | 9 (6.9) | 2 (1.5) |
| Upland nests | Machinery | |||||
| Mallard | 10 | 1 | 8 | 0 | 1 | |
| Gadwall | 3 | 1 | 2 | 0 | 0 | |
| Northern pintail | 2 | 0 | 1 | 0 | 1 | |
| Blue-wing teal | 22 | 7 | 13 | 2 | 0 | |
| Northern shoveler | 3 | 0 | 3 | 0 | 0 | |
| Total (%) | 40 | 9 (22.5) | 27 (67.5) | 2 (5.0) | 2 (5.0) | |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/waubay/tab12.htm
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