Family · Ardeidae · Pelecaniformes
Herons, Egrets & Bitterns Population Trends
13 species tracked, ordered by long-term trend. Steepest declines first.
| History | ||||
|---|---|---|---|---|
| Reddish Egret | Wetland birds | -83% | 1968 | |
| Green Heron | Wetland birds | -67% | 1968 | |
| Little Blue Heron | Wetland birds | -63% | 1968 | |
| Tricolored Heron | Wetland birds | -61% | 1968 | |
| Black-crowned Night Heron | Wetland birds | -57% | 1968 | |
| Snowy Egret | Wetland birds | -30% | 1968 | |
| American Bittern | Wetland birds | -16% | 1968 | |
| Great Egret | Wetland birds | -10% | 1968 | |
| Western Cattle-Egret | Wetland birds | +2% | 1968 | |
| Yellow-crowned Night Heron | Wetland birds | +20% | 1968 | |
| Great Blue Heron | Wetland birds | +66% | 1968 | |
| Least Bittern | Wetland birds | +97% | 1968 | |
| unid Black-crowned / Yellow-crowned Night Heron | Wetland birds | n/a | n/a |