Species · Alabama · BBS 2025 Release · 1966–2024
Least Bittern Population Trend in Alabama
Least Bittern in Alabama has fallen sharply: down 72% on the route-weighted index since 1971.
-72%Since 1971
14Routes In State
27Years
Notable Least Bittern Trends in Alabama
No notable trend signals for Least Bittern in Alabama. See the full index history below.
Least Bittern Population Forecast in Alabama
If the recent trend holds, Least Bittern in Alabama is projected to stay roughly flat through 2026, near 0.01 (95% range 0.00–0.04). A 5-year backtest shows a typical error of ±25.1%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2026
0.01Projected 2026 index
0.00–0.0495% range
±25.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2022 | 0.01 | 0.00 | 0.04 |
| 2023 | 0.01 | 0.00 | 0.04 |
| 2024 | 0.01 | 0.00 | 0.04 |
| 2025 | 0.01 | 0.00 | 0.04 |
| 2026 | 0.01 | 0.00 | 0.04 |
Least Bittern Survey Routes in Alabama
| Alabama Pt | 3 | 1990 | 1975 |
| Nixburg | 1 | 1999 | 1999 |
| Brantley | 1 | 1973 | 1973 |
| Valhermoso Spgs | 1 | 1988 | 1988 |
| Wheeler Dam | 1 | 2001 | 2000 |
| Pine Grove | 1 | 1983 | 1976 |
| Dauphin Is | 1 | 1977 | 1966 |
| Alabama Pt 2 | 1 | 2007 | 2007 |
| Gainestown Ferry | 1 | 2003 | 2003 |
| Whitehall | 1 | 2021 | 2001 |
| Drummond | 1 | 2001 | 2001 |
| Chacaloochee Bay | 1 | 2019 | 2009 |
| Billingsley | 1 | 2001 | 2001 |
| Grangeburg | 1 | 2002 | 2002 |
Least Bittern Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.