Species · Vermont · BBS 2025 Release · 1966–2024
Wood Duck Population Trend in Vermont
Wood Duck in Vermont has surged: up 77% on the route-weighted index since 1969.
+77%Since 1969
21Routes In State
48Years
Notable Wood Duck Trends in Vermont
long arc increasecomputed index
Wood Duck has surged in Vermont: up 77% on the route-weighted index since 1969.
Wood Duck Population Forecast in Vermont
If the recent trend holds, Wood Duck in Vermont is projected to fall about 19% by 2029 — from 0.67 in 2024 to a central estimate of 0.54 (95% range 0.02–1.1). A 5-year backtest shows a typical error of ±68.4%, with 100% of held-out values landing inside the 95% band.
-19%Change by 2029
0.54Projected 2029 index
0.02–1.195% range
±68.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.52 | 0.00 | 1.0 |
| 2026 | 0.52 | 0.00 | 1.0 |
| 2027 | 0.53 | 0.01 | 1.0 |
| 2028 | 0.53 | 0.01 | 1.1 |
| 2029 | 0.54 | 0.02 | 1.1 |
Wood Duck Survey Routes in Vermont
| Grand Isle | 7 | 2023 | 1968 |
| Marlboro | 4 | 2024 | 1990 |
| Bristol | 4 | 2000 | 1997 |
| Gaysville | 2 | 2012 | 2012 |
| Shaftsbury | 2 | 2024 | 1978 |
| S Wallingfrd | 2 | 2018 | 1974 |
| W Rutland | 2 | 2024 | 1979 |
| East Calais | 2 | 2018 | 2018 |
| Hardwick | 2 | 2016 | 1999 |
| Hinesburg | 2 | 1993 | 1980 |
| North Pownal | 1 | 2023 | 1981 |
| Landgrove | 1 | 2023 | 1995 |
| S Reading | 1 | 2024 | 1966 |
| Post Mills | 1 | 2023 | 1977 |
| St Johnsbury | 1 | 2018 | 1970 |
| East Haven | 1 | 2024 | 2021 |
| Middlesex | 1 | 2017 | 1985 |
| Greensboro | 1 | 2021 | 1983 |
| Waterville | 1 | 1979 | 1979 |
| Colchester | 1 | 2024 | 1992 |
| Stowe | 1 | 2024 | 2024 |
Wood Duck Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.