Species · New Hampshire · BBS 2025 Release · 1966–2024
Common Raven Population Trend in New Hampshire
Common Raven in New Hampshire has surged: up 11× on the route-weighted index since 1968.
11×Since 1968
26Routes In State
58Years
Notable Common Raven Trends in New Hampshire
long arc increasecomputed index
Common Raven has surged in New Hampshire: up 11× on the route-weighted index since 1968.
Common Raven Population Forecast in New Hampshire
If the recent trend holds, Common Raven in New Hampshire is projected to fall about 15% by 2029 — from 3.5 in 2024 to a central estimate of 3.0 (95% range 2.0–3.9). A 5-year backtest shows a typical error of ±20.4%, with 60% of held-out values landing inside the 95% band.
-15%Change by 2029
3.0Projected 2029 index
2.0–3.995% range
±20.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.8 | 1.8 | 3.7 |
| 2026 | 2.8 | 1.9 | 3.8 |
| 2027 | 2.9 | 1.9 | 3.8 |
| 2028 | 2.9 | 2.0 | 3.9 |
| 2029 | 3.0 | 2.0 | 3.9 |
Common Raven Survey Routes in New Hampshire
| Wilmot | 10 | 2024 | 1983 |
| Marlow | 10 | 2024 | 1976 |
| Franconia | 9 | 2024 | 1971 |
| Lempster | 7 | 2024 | 1991 |
| Dixvil Notch | 7 | 2016 | 1966 |
| Dixville Notch 2 | 7 | 2024 | 2019 |
| Strafford | 5 | 2024 | 1987 |
| Glen | 5 | 2024 | 1976 |
| Hopkinton | 4 | 2024 | 1988 |
| East Kingston | 4 | 2024 | 2002 |
| Gilmantn I W | 3 | 2024 | 1995 |
| Milan | 3 | 2024 | 1966 |
| Dover | 2 | 2024 | 1993 |
| Epsom | 2 | 2023 | 2000 |
| Mt Chocorua | 2 | 2023 | 1972 |
| Crawford Not | 2 | 1975 | 1969 |
| Clarksville | 2 | 2024 | 1967 |
| Peterborough | 1 | 2024 | 1982 |
| Brentwood | 1 | 1998 | 1998 |
| Fitzwilliam | 1 | 2024 | 2010 |
| Concord | 1 | 2024 | 1995 |
| Canterbury | 1 | 2023 | 1992 |
| Walpole | 1 | 2024 | 1989 |
| Jefferson Hl | 1 | 2023 | 1967 |
| Stratford | 1 | 2021 | 1968 |
Common Raven Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.