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.
