Species · Massachusetts · BBS 2025 Release · 1966–2024
Yellow-throated Vireo Population Trend in Massachusetts
Yellow-throated Vireo in Massachusetts has surged: up 810% on the route-weighted index since 1974.
+810%Since 1974
21Routes In State
52Years
Notable Yellow-throated Vireo Trends in Massachusetts
long arc increasecomputed index
Yellow-throated Vireo has surged in Massachusetts: up 810% on the route-weighted index since 1974.
Yellow-throated Vireo Population Forecast in Massachusetts
If the recent trend holds, Yellow-throated Vireo in Massachusetts is projected to fall about 39% by 2029 — from 1.1 in 2024 to a central estimate of 0.69 (95% range 0.19–1.2). A 5-year backtest shows a typical error of ±61.4%, with 0% of held-out values landing inside the 95% band.
-39%Change by 2029
0.69Projected 2029 index
0.19–1.295% range
±61.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.65 | 0.15 | 1.2 |
| 2026 | 0.66 | 0.16 | 1.2 |
| 2027 | 0.67 | 0.17 | 1.2 |
| 2028 | 0.68 | 0.18 | 1.2 |
| 2029 | 0.69 | 0.19 | 1.2 |
Yellow-throated Vireo Survey Routes in Massachusetts
| Belchertown | 5 | 2024 | 1978 |
| S Barre | 4 | 2024 | 1977 |
| Warren | 3 | 2008 | 1974 |
| Sheffield | 3 | 2022 | 1971 |
| Monterey | 3 | 2024 | 2019 |
| Holden | 3 | 2024 | 1987 |
| Warren 2 | 3 | 2023 | 2011 |
| Maynard | 2 | 2022 | 1997 |
| N Oxford | 2 | 2004 | 1995 |
| Cummington | 2 | 1986 | 1975 |
| Hancock | 2 | 2015 | 2009 |
| Ware River | 1 | 2021 | 1995 |
| Prattville | 1 | 2014 | 1997 |
| Littleton | 1 | 2018 | 1978 |
| E Pepperell | 1 | 1977 | 1977 |
| N Orange | 1 | 2018 | 1972 |
| Chesterfield | 1 | 2024 | 1971 |
| Cheshire | 1 | 1992 | 1972 |
| Pittsfield | 1 | 2006 | 1972 |
| N. Andover | 1 | 2024 | 1995 |
| Cummington 2 | 1 | 2019 | 2019 |
Yellow-throated Vireo Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.