Species · Vermont · BBS 2025 Release · 1966–2024
Prairie Warbler Population Trend in Vermont
Prairie Warbler in Vermont has held roughly steady: down 7% on the route-weighted index since 1976.
-7%Since 1976
9Routes In State
23Years
Notable Prairie Warbler Trends in Vermont
No notable trend signals for Prairie Warbler in Vermont. See the full index history below.
Prairie Warbler Population Forecast in Vermont
If the recent trend holds, Prairie Warbler in Vermont is projected to rise about 70% by 2028 — from 0.06 in 2023 to a central estimate of 0.10 (95% range 0.01–0.18). A 5-year backtest shows a typical error of ±49.9%, with 80% of held-out values landing inside the 95% band.
+70%Change by 2028
0.10Projected 2028 index
0.01–0.1895% range
±49.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.09 | 0.00 | 0.18 |
| 2025 | 0.09 | 0.00 | 0.18 |
| 2026 | 0.09 | 0.00 | 0.18 |
| 2027 | 0.09 | 0.00 | 0.18 |
| 2028 | 0.10 | 0.01 | 0.18 |
Prairie Warbler Survey Routes in Vermont
| Marlboro | 2 | 1988 | 1988 |
| North Pownal | 1 | 2017 | 2017 |
| Stratton | 1 | 2021 | 2014 |
| S Reading | 1 | 1972 | 1972 |
| Shaftsbury | 1 | 1999 | 1976 |
| S Wallingfrd | 1 | 2003 | 1999 |
| W Rutland | 1 | 2023 | 2023 |
| St Johnsbury | 1 | 1990 | 1971 |
| Hinesburg | 1 | 1980 | 1980 |
Prairie Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.