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Prairie Basin Wetlands of the Dakotas:
A Community Profile

Tables

Table 8. Frequency of occurrence of 13 selected species of marsh and aquatic birds in South Dakota wetlands during May and June surveys in 1975-76 (from Weber et al. 1982).

Wetland Classa
Species 2 3 4
American bittern   0.8 6.3
Great blue heron     1.2
Green-backed heron     0.4
Black-crowned night heron   3.3 1.2
Sora   3.4 5.5
American avocet 1.4 0.4  
Lesser yellowlegs 2.7 1.9 1.6
Willet 4.1 3.4 4.7
Marbled godwit 4.1 1.5 2.3
Wilson's phalarope 8.2 9.8 7.4
Black tern   1.1 6.3
Yellow-headed blackbird 2.7 6.8 37.5
Red-winged blackbird 37 51.9 74.2

aTemporary (Class 2), seasonal (Class 3) and semipermanent (Class 4) wetlands.

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