Species · Vermont · BBS 2025 Release · 1966–2024
Baltimore Oriole Population Trend in Vermont
Baltimore Oriole in Vermont has collapsed: down 82% on the route-weighted index since 1968.
-82%Since 1968
26Routes In State
58Years
Notable Baltimore Oriole Trends in Vermont
long arc declinecomputed index
Baltimore Oriole has collapsed in Vermont: down 82% on the route-weighted index since 1968.
Baltimore Oriole Population Forecast in Vermont
If the recent trend holds, Baltimore Oriole in Vermont is projected to fall about 45% by 2029 — from 1.2 in 2024 to a central estimate of 0.64 (95% range 0.00–2.7). A 5-year backtest shows a typical error of ±61.3%, with 100% of held-out values landing inside the 95% band.
-45%Change by 2029
0.64Projected 2029 index
0.00–2.795% range
±61.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.0 | 0.00 | 3.1 |
| 2026 | 0.91 | 0.00 | 3.0 |
| 2027 | 0.82 | 0.00 | 2.9 |
| 2028 | 0.73 | 0.00 | 2.8 |
| 2029 | 0.64 | 0.00 | 2.7 |
Baltimore Oriole Survey Routes in Vermont
| Waterville | 7 | 1980 | 1967 |
| Shaftsbury | 6 | 2024 | 1966 |
| Hinesburg | 5 | 1994 | 1966 |
| S Wallingfrd | 3 | 2022 | 1966 |
| W Rutland | 3 | 2024 | 1966 |
| Stowe | 3 | 2022 | 1988 |
| Bristol | 3 | 2018 | 1995 |
| Marlboro | 2 | 2024 | 1966 |
| S Reading | 2 | 2023 | 1966 |
| Gaysville | 2 | 2018 | 1966 |
| Fletcher | 2 | 2024 | 1968 |
| Grand Isle | 2 | 2024 | 1967 |
| North Pownal | 1 | 2023 | 1966 |
| Stratton | 1 | 2024 | 1967 |
| Landgrove | 1 | 2024 | 1969 |
| Post Mills | 1 | 2021 | 1966 |
| St Johnsbury | 1 | 2024 | 1970 |
| East Haven | 1 | 2018 | 1966 |
| Northfld Fls | 1 | 2018 | 1980 |
| Middlesex | 1 | 2017 | 1968 |
| East Calais | 1 | 2019 | 1970 |
| Newbury | 1 | 2004 | 1986 |
| Hardwick | 1 | 2024 | 1968 |
| Greensboro | 1 | 2024 | 1971 |
| Colchester | 1 | 2024 | 1986 |
Baltimore Oriole Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.