Species · Alabama · BBS 2025 Release · 1966–2024
Blue-winged Warbler Population Trend in Alabama
Blue-winged Warbler in Alabama has collapsed: down 87% on the route-weighted index since 1968.
-87%Since 1968
26Routes In State
54Years
Notable Blue-winged Warbler Trends in Alabama
long arc declinecomputed index
Blue-winged Warbler has collapsed in Alabama: down 87% on the route-weighted index since 1968.
Blue-winged Warbler Population Forecast in Alabama
If the recent trend holds, Blue-winged Warbler in Alabama is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±94.9%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.00Projected 2029 index
0.00–0.1095% range
±94.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.10 |
| 2026 | 0.00 | 0.00 | 0.10 |
| 2027 | 0.00 | 0.00 | 0.10 |
| 2028 | 0.00 | 0.00 | 0.10 |
| 2029 | 0.00 | 0.00 | 0.10 |
Blue-winged Warbler Survey Routes in Alabama
| Hillsboro | 2 | 1982 | 1975 |
| Dawson | 2 | 1971 | 1971 |
| Howard | 2 | 1988 | 1969 |
| Liberty | 2 | 1987 | 1966 |
| St Florian | 1 | 1976 | 1975 |
| Trade | 1 | 1981 | 1971 |
| Summitt | 1 | 1975 | 1968 |
| Swaim | 1 | 2024 | 1972 |
| Pine Grove | 1 | 1971 | 1970 |
| Millerville | 1 | 1973 | 1972 |
| Sunny Eve | 1 | 2017 | 1967 |
| Greensport | 1 | 2005 | 1966 |
| Smyer Lake | 1 | 1992 | 1967 |
| Mt Olive | 1 | 2002 | 1966 |
| Maytown | 1 | 1984 | 1966 |
| Billingsley | 1 | 1989 | 1988 |
| Blocton | 1 | 1976 | 1969 |
| Whitehouse | 1 | 2018 | 1987 |
| Jena | 1 | 1983 | 1983 |
| Youngtown | 1 | 2017 | 1994 |
| Carrollton | 1 | 1996 | 1996 |
| Odenville | 1 | 1997 | 1997 |
| Borden Sprng | 1 | 1998 | 1994 |
| Vina | 1 | 2022 | 1996 |
| Stevenson | 1 | 2013 | 2013 |
Blue-winged Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.