Species · Vermont · BBS 2025 Release · 1966–2024
Northern Waterthrush Population Trend in Vermont
Northern Waterthrush in Vermont has increased: up 45% on the route-weighted index since 1969.
+45%Since 1969
23Routes In State
57Years
Notable Northern Waterthrush Trends in Vermont
No notable trend signals for Northern Waterthrush in Vermont. See the full index history below.
Northern Waterthrush Population Forecast in Vermont
If the recent trend holds, Northern Waterthrush in Vermont is projected to fall about 11% by 2029 — from 0.28 in 2024 to a central estimate of 0.25 (95% range 0.00–0.59). A 5-year backtest shows a typical error of ±180.5%, with 100% of held-out values landing inside the 95% band.
-11%Change by 2029
0.25Projected 2029 index
0.00–0.5995% range
±180.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.25 | 0.00 | 0.59 |
| 2026 | 0.25 | 0.00 | 0.59 |
| 2027 | 0.25 | 0.00 | 0.59 |
| 2028 | 0.25 | 0.00 | 0.59 |
| 2029 | 0.25 | 0.00 | 0.59 |
Northern Waterthrush Survey Routes in Vermont
| Hardwick | 2 | 2024 | 1968 |
| Greensboro | 2 | 2008 | 1971 |
| Marlboro | 1 | 1991 | 1970 |
| North Pownal | 1 | 1976 | 1976 |
| Stratton | 1 | 2024 | 1970 |
| Landgrove | 1 | 2021 | 1984 |
| S Reading | 1 | 2019 | 1976 |
| Gaysville | 1 | 2004 | 2004 |
| Post Mills | 1 | 2023 | 1975 |
| Shaftsbury | 1 | 1979 | 1979 |
| S Wallingfrd | 1 | 1988 | 1972 |
| W Rutland | 1 | 2024 | 1979 |
| St Johnsbury | 1 | 2004 | 2001 |
| East Haven | 1 | 2024 | 1966 |
| Northfld Fls | 1 | 2016 | 1980 |
| Middlesex | 1 | 2013 | 1975 |
| East Calais | 1 | 2015 | 1971 |
| Newbury | 1 | 1990 | 1990 |
| Hinesburg | 1 | 1992 | 1977 |
| Colchester | 1 | 2019 | 1987 |
| Newbury 2 | 1 | 2016 | 2015 |
| Stowe | 1 | 2010 | 1988 |
| Bristol | 1 | 1996 | 1996 |
Northern Waterthrush Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.