Guild · Tennessee · BBS 2025 Release · 1966–2024
Wetland Birds In Tennessee
9 species in this guild. As a group they are +58% since 1968.
Guild Signals
No notable trend signals for wetland birds in Tennessee. See the full index history below.
Forecast
If the recent trend holds, Wetland birds in Tennessee is projected to rise about 19% by 2029 — from 0.60 in 2024 to a central estimate of 0.72 (95% range 0.39–1.0). A 5-year backtest shows a typical error of ±33.1%, with 100% of held-out values landing inside the 95% band.
+19%Change by 2029
0.72Projected 2029 index
0.39–1.095% range
±33.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.70 | 0.37 | 1.0 |
| 2026 | 0.70 | 0.38 | 1.0 |
| 2027 | 0.71 | 0.38 | 1.0 |
| 2028 | 0.71 | 0.38 | 1.0 |
| 2029 | 0.72 | 0.39 | 1.0 |
Member Species In Tennessee
| Western Cattle-Egret | Ardeidae | -87% |
| Green Heron | Ardeidae | -75% |
| Yellow-crowned Night Heron | Ardeidae | -34% |
| Least Tern | Laridae | -28% |
| Black-crowned Night Heron | Ardeidae | -21% |
| Little Blue Heron | Ardeidae | +196% |
| Double-crested Cormorant | Phalacrocoracidae | +431% |
| Great Egret | Ardeidae | +644% |
| Great Blue Heron | Ardeidae | 30× |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.