Species · Alabama · BBS 2025 Release · 1966–2024
Carolina Wren Population Trend in Alabama
Carolina Wren in Alabama has surged: up 99% on the route-weighted index since 1968.
+99%Since 1968
109Routes In State
58Years
Notable Carolina Wren Trends in Alabama
long arc increasecomputed index
Carolina Wren has surged in Alabama: up 99% on the route-weighted index since 1968.
Carolina Wren Population Forecast in Alabama
If the recent trend holds, Carolina Wren in Alabama is projected to fall about 14% by 2029 — from 30 in 2024 to a central estimate of 26 (95% range 19–33). A 5-year backtest shows a typical error of ±25%, with 40% of held-out values landing inside the 95% band.
-14%Change by 2029
26Projected 2029 index
19–3395% range
±25%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 25 | 18 | 32 |
| 2026 | 25 | 18 | 32 |
| 2027 | 25 | 18 | 32 |
| 2028 | 26 | 19 | 33 |
| 2029 | 26 | 19 | 33 |
Carolina Wren Survey Routes in Alabama
| Gainestown Ferry | 80 | 2015 | 1999 |
| Rock Chapel | 59 | 2024 | 1995 |
| Sprott-Cahaba Riv | 58 | 2014 | 1999 |
| Epes | 57 | 2024 | 1980 |
| Elamville | 57 | 2024 | 1984 |
| Warrior Std | 51 | 2024 | 1966 |
| Newton | 51 | 2024 | 1966 |
| Liberty City 2 | 49 | 2024 | 2017 |
| Cottonton | 48 | 2024 | 1966 |
| Triana | 48 | 2012 | 1999 |
| Talladega | 46 | 2024 | 1996 |
| Linden | 45 | 2023 | 1968 |
| Grangeburg | 43 | 2024 | 1966 |
| Riverside | 43 | 2013 | 1999 |
| Calebee | 42 | 2024 | 1993 |
| Borden Springs 2 | 42 | 2024 | 2001 |
| Greensport | 41 | 2024 | 1966 |
| Bon Secour | 41 | 2023 | 1993 |
| Sprague | 40 | 2024 | 1966 |
| Whitehall | 40 | 2024 | 1983 |
| Stevenson | 40 | 2024 | 1996 |
| Valhermoso Spgs | 39 | 2010 | 1966 |
| Chacaloochee Bay | 39 | 2019 | 2009 |
| Appleton | 37 | 2023 | 1993 |
| Wedowee | 37 | 2023 | 1996 |
Carolina Wren Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.