Species · Alabama · BBS 2025 Release · 1966–2024
Anhinga Population Trend in Alabama
Anhinga in Alabama has increased: up 43% on the route-weighted index since 1978.
+43%Since 1978
19Routes In State
31Years
Notable Anhinga Trends in Alabama
No notable trend signals for Anhinga in Alabama. See the full index history below.
Anhinga Population Forecast in Alabama
If the recent trend holds, Anhinga in Alabama is projected to rise about 23% by 2029 — from 0.05 in 2024 to a central estimate of 0.07 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±53.5%, with 60% of held-out values landing inside the 95% band.
+23%Change by 2029
0.07Projected 2029 index
0.00–0.1595% range
±53.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.06 | 0.00 | 0.14 |
| 2026 | 0.06 | 0.00 | 0.14 |
| 2027 | 0.06 | 0.00 | 0.14 |
| 2028 | 0.06 | 0.00 | 0.14 |
| 2029 | 0.07 | 0.00 | 0.15 |
Anhinga Survey Routes in Alabama
| Lanett | 6 | 2022 | 2022 |
| Madrid | 4 | 2019 | 1994 |
| Wallsboro | 2 | 2004 | 1999 |
| Fairview | 2 | 2024 | 1992 |
| Harrell | 1 | 1986 | 1972 |
| Greensboro | 1 | 2000 | 2000 |
| Billingsley | 1 | 2017 | 2017 |
| Newton | 1 | 1998 | 1998 |
| Grangeburg | 1 | 2016 | 1978 |
| Brundidge | 1 | 2015 | 2015 |
| Brantley | 1 | 2023 | 2023 |
| Mclellan | 1 | 2009 | 2009 |
| Millry | 1 | 2001 | 2001 |
| Elamville | 1 | 2008 | 2008 |
| Calebee | 1 | 2019 | 2019 |
| Helicon | 1 | 2024 | 2024 |
| St. Elmo | 1 | 2017 | 2017 |
| Gainestown Ferry | 1 | 2009 | 1999 |
| Chacaloochee Bay | 1 | 2019 | 2009 |
Anhinga Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.