Species · New Hampshire · BBS 2025 Release · 1966–2024
Red-bellied Woodpecker Population Trend in New Hampshire
Red-bellied Woodpecker in New Hampshire has surged: up 44× on the route-weighted index since 2004.
44×Since 2004
14Routes In State
22Years
Notable Red-bellied Woodpecker Trends in New Hampshire
long arc increasecomputed index
Red-bellied Woodpecker has surged in New Hampshire: up 44× on the route-weighted index since 2004.
Red-bellied Woodpecker Population Forecast in New Hampshire
If the recent trend holds, Red-bellied Woodpecker in New Hampshire is projected to rise about 23% by 2029 — from 2.9 in 2024 to a central estimate of 3.5 (95% range 2.7–4.4). A 5-year backtest shows a typical error of ±17.4%, with 80% of held-out values landing inside the 95% band.
+23%Change by 2029
3.5Projected 2029 index
2.7–4.495% range
±17.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.0 | 2.1 | 3.8 |
| 2026 | 3.1 | 2.3 | 3.9 |
| 2027 | 3.2 | 2.4 | 4.1 |
| 2028 | 3.4 | 2.5 | 4.2 |
| 2029 | 3.5 | 2.7 | 4.4 |
Red-bellied Woodpecker Survey Routes in New Hampshire
| Strafford | 18 | 2024 | 1997 |
| Canterbury | 10 | 2024 | 2014 |
| Dover | 9 | 2024 | 2004 |
| East Kingston | 9 | 2024 | 2001 |
| Peterborough | 5 | 2024 | 2005 |
| Marlow | 4 | 2024 | 2012 |
| Fitzwilliam | 2 | 2024 | 2012 |
| Concord | 2 | 2024 | 2004 |
| Gilmantn I W | 2 | 2024 | 2013 |
| Hopkinton | 1 | 2024 | 2010 |
| Epsom | 1 | 2023 | 2012 |
| Wilmot | 1 | 2024 | 2024 |
| Walpole | 1 | 2023 | 2014 |
| Lempster | 1 | 2023 | 2016 |
Red-bellied Woodpecker Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.