Northern Prairie Wildlife Research Center
| Table 8. Use (%) of different wetland classes (Stewart and Kantrud 1971) by breeding pairs in the Waubay study area, Day County, South Dakota, 1993. | |||||||||
| Species | Wetland Class (Stewart and Kantrud 1971) | ||||||||
| na | I | II | III | IV | IIIt | T-2 | T-3 | T-4 | |
| Dabbling ducks | |||||||||
| Mallard | 429 | 0.0 | 1.4 | 42.0 | 45.7 | 3.7 | 5.8 | 0.2 | 1.2 |
| Gadwall | 230 | 0.0 | 1.7 | 44.8 | 40.4 | 6.1 | 3.5 | 1.3 | 2.2 |
| Northern pintail | 85 | 0.0 | 4.7 | 44.7 | 30.6 | 8.2 | 9.4 | 1.2 | 1.2 |
| Blue-wing teal | 948 | 0.1 | 2.7 | 54.5 | 39.8 | 1.8 | 0.8 | 0.0 | 0.2 |
| Northern shoveler | 109 | 0.0 | 2.8 | 58.7 | 30.3 | 4.6 | 1.8 | 0.0 | 1.8 |
| Total dabblers | 1,801 | tr. | 2.4 | 50.1 | 40.3 | 3.3 | 2.8 | 0.3 | 0.8 |
| Diving ducks | |||||||||
| Redhead | 247 | 0.0 | 0.0 | 15.4 | 79.4 | 1.6 | 0.4 | 0.0 | 3.2 |
| Canvasback | 16 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Ruddy duck | 76 | 0.0 | 0.0 | 0.0 | 96.1 | 3.9 | 0.0 | 0.0 | 0.0 |
| Total divers | 339 | 0.0 | 0.0 | 11.2 | 84.0 | 2.1 | 0.3 | 0.0 | 2.4 |
| Total | 2,140 | tr. | 2.0 | 43.9 | 47.2 | 3.1 | 2.4 | 0.2 | 1.1 |
| a Number of breeding pairs. | |||||||||
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/waubay/tab8.htm
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