Species · Florida · BBS 2025 Release · 1966–2024
Swainson's Warbler Population Trend in Florida
Swainson's Warbler in Florida has surged: up 302% on the route-weighted index since 1973.
+302%Since 1973
25Routes In State
43Years
Notable Swainson's Warbler Trends in Florida
long arc increasecomputed index
Swainson's Warbler has surged in Florida: up 302% on the route-weighted index since 1973.
Swainson's Warbler Population Forecast in Florida
If the recent trend holds, Swainson's Warbler in Florida is projected to rise about 33% by 2029 — from 0.09 in 2024 to a central estimate of 0.12 (95% range 0.00–0.23). A 5-year backtest shows a typical error of ±47.5%, with 100% of held-out values landing inside the 95% band.
+33%Change by 2029
0.12Projected 2029 index
0.00–0.2395% range
±47.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.11 | 0.00 | 0.23 |
| 2026 | 0.11 | 0.00 | 0.23 |
| 2027 | 0.11 | 0.00 | 0.23 |
| 2028 | 0.12 | 0.00 | 0.23 |
| 2029 | 0.12 | 0.00 | 0.23 |
Swainson's Warbler Survey Routes in Florida
| Seminole Hills 2 | 7 | 2022 | 2002 |
| New Hope | 6 | 2011 | 2009 |
| Bloxham | 4 | 2022 | 1994 |
| Miller Xrds | 3 | 2019 | 1988 |
| Bristol | 3 | 2019 | 2001 |
| Betts | 2 | 2019 | 2016 |
| Callahan | 2 | 2011 | 1987 |
| Alligator Pt | 2 | 2024 | 1989 |
| Oak Grove | 1 | 1999 | 1976 |
| Blountstown | 1 | 2017 | 1986 |
| Broad Branch | 1 | 2024 | 2011 |
| Apalachicola | 1 | 2018 | 1995 |
| Seminole Hls | 1 | 1998 | 1990 |
| Telogia | 1 | 1985 | 1971 |
| Covington | 1 | 2021 | 1970 |
| Belmont | 1 | 2015 | 1981 |
| St Augustine | 1 | 1973 | 1973 |
| Hilliard | 1 | 2014 | 2014 |
| Laurel Hill | 1 | 2024 | 2023 |
| Eglin A.F.B. | 1 | 2010 | 1995 |
| Blackwater | 1 | 1994 | 1994 |
| Defuniak Spr | 1 | 2006 | 1988 |
| Hixtown Swmp | 1 | 2018 | 1994 |
| Ft Mccoy | 1 | 2004 | 2004 |
| Oak Grove 2 | 1 | 2024 | 2024 |
Swainson's Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.