Table II - Species Composition, Species Densities, and 1951-1952 Trends in the South Dakota Breeding 
Waterfowl Population 
Species Densities * * 


Number of Males * Percent Composition * Ducks per Square Mile 
epeceee 1951 1952 1951 1952 Change 1951 1952 Change 
Blue-winged teal 2,644 3, 894 41.05 43.62 + 2.57 2.70 5,83 + 112 
Pintail 1,214 2,222 18.92 24.90 + 5.98 1,24 3.33 + 169 
Mallard 1,087 1,318 16.94 14.88 - 2.06 1,11 1.99 + 79 
Shoveler 647 635 10.08 7.11 - 2.97 0. 66 0.95 + 44 
Gadwall 250 272 3.90 3.05 - 0.85 0.26 0.41 + 58 
Redhead 211 219 3.29 2.45 - 0.84 0.22 0.33 + 50 
Ruddy duck 81 161 1.26 1.80 + 0.54 0.08 0.24 + 200 
Scaup 203 87 3.16 0.97 - 2.19 0.21 0.13 - 62 
Canvasback Lt + 62 0.26 0.69 + 0.43 0.02 0.09 + 350 
Baldpate 44 43 0.69 0.48 - 0.21 0.05 0.06 + 20 
Green-winged teal 5 10 0.08 0.11 + 0.03 0.01 0.01 - 
Wood duck 14 3 0.22 0.03 - 0.19 0.01 T - 
Cinnamon teal a ] 0.02 0.01 - 0,01 ey T = 
0 ee Ce ee eee ee eer eee ere Lee a ae A ewe ree enema A Es 
Total 6,418 8,927 100. 00 100. 00 6.57 13.37 + 104 — 
* Data from ground transects. 
**x Product of percent species composition and the 
average, minimum, State-wide duck density. 
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