Mean percent occupancy of wet ponds in size class (ha) | |||||||||||
Size class | ≤0.09 | 0.10-0.25 | 0.26-0.5 | 0.51-0.75 | 0.76-1.0 | 1.01-2.00 | 2.01-5.0 | 5.01-10.0 | 10.01-25.0 | ≥25.01 | |
Species | Average number per year | 41 | 79 | 72 | 29 | 22 | 31 | 20 | 3 | 9 | 4 |
Dabbling ducks | |||||||||||
Mallard | 2.2 | 3.3 | 6.0 | 12.4 | 15.6 | 15.8 | 29.6 | 35.3 | 55.1 | 50.0 | |
Gadwall | 0.9 | 6.7 | 10.3 | 17.5 | 20.2 | 22.3 | 44.4 | 58.1 | 76.5 | 75.0 | |
American wigeon | 0.0 | 0.9 | 1.3 | 2.2 | 4.9 | 3.2 | 6.7 | 9.7 | 29.6 | 15.9 | |
Green-winged teal | 0.4 | 1.3 | 1.9 | 2.5 | 4.1 | 3.2 | 4.0 | 3.2 | 16.3 | 20.5 | |
Blue-winged teal | 12.7 | 27.3 | 30.1 | 43.9 | 52.3 | 59.8 | 74.9 | 77.4 | 89.9 | 90.9 | |
Northern shoveler | 0.9 | 2.8 | 3.5 | 5.4 | 8.2 | 11.1 | 21.5 | 22.6 | 43.9 | 27.3 | |
Northern pintail | 1.5 | 2.3 | 5.0 | 7.0 | 10.3 | 12.9 | 17.9 | 22.6 | 33.7 | 25.0 | |
Total dabbling ducks | 16.5 | 33.9 | 39.6 | 53.2 | 64.6 | 17.6 | 84.8 | 96.8 | 95.9 | 93.2 | |
Diving ducks | |||||||||||
Redhead | 0.0 | 0.0 | 0.3 | 1.6 | 2.1 | 3.5 | 4.9 | 9.7 | 29.6 | 20.5 | |
Canvasback | 0.0 | 0.0 | 0.0 | 0.3 | 0.4 | 0.3 | 0.4 | 3.2 | 5.1 | 2.3 | |
Lesser scaup | 0.2 | 0.3 | 0.1 | 1.3 | 0.4 | 2.6 | 4.0 | 3.2 | 30.6 | 43.2 | |
Ring-necked duck | 0.0 | 0.1 | 0.0 | 0.3 | 0.0 | 0.0 | 0.4 | 0.0 | 4.1 | 4.5 | |
Ruddy duck | 0.0 | 0.0 | 0.0 | 0.3 | 0.0 | 0.6 | 1.8 | 9.7 | 23.5 | 25.0 | |
Total diving ducks | 0.2 | 0.5 | 0.4 | 2.9 | 2.5 | 6.7 | 10.8 | 22.6 | 55.1 | 65.9 | |
Total pairs | 16.7 | 33.9 | 39.9 | 53.8 | 65.0 | 73.0 | 85.2 | 100.0 | 96.9 | 95.5 |