Northern Prairie Wildlife Research Center
Table 5. Breeding pair estimates and species coposition, Roseneath Study Area, 1952 to 1955.
| Species | Assigned breeding pairs | 4-year average | % species composition | Mean pairs/square mile | |||
| 1952 | 1952 | 1954* | 1955 | ||||
| Dabblers: | |||||||
| Mallard | 54 | 49 | 41 | 33 | 44 | 33.1 | 31.5 |
| Blue-winged teal | 31 | 27 | 35 | 24 | 29 | 21.8 | 20.7 |
| Widgeon | 12 | 13 | 15 | 12 | 13 | 9.8 | 9.3 |
| Pintail | 11 | 6 | 12 | 7 | 9 | 6.8 | 6.4 |
| Shoveler | 4 | 3 | 5 | 3 | 4 | 3.0 | 2.9 |
| Green-winged teal | 5 | 3 | 5 | 0 | 3 | 2.3 | 2.1 |
| Gadwall | 3 | 3 | 2 | 3 | 3 | 2.3 | 2.1 |
| Subtotal | 120 | 104 | 115 | 82 | 105 | 79.1 | 75.0 |
| Divers: | |||||||
| Canvasback | 12 | 10 | 10 | 8 | 10 | 7.5 | 7.1 |
| Redhead | 4 | 10 | 6 | 5 | 6 | 4.5 | 4.3 |
| Lesser scaup | 1 | 2 | 2 | 0 | 1 | 0.7 | 0.7 |
| Ruddy duck | 4 | 10 | 14 | 15 | 11 | 8.2 | 7.9 |
| Subtotal | 21 | 32 | 32 | 28 | 28 | 20.9 | 20.0 |
| Total | 141 | 136 | 147 | 110 | 133 | 100.0 | 95.0 |
| *Plus one pair of nesting ring-necked ducks. | |||||||
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/duckcoun/table5.htm
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Page Last Modified: Friday, 01-Feb-2013 19:13:53 EST
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