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Species · New Hampshire · BBS 2026 Release · 1966–2025

Pileated Woodpecker Population Trend in New Hampshire

All statesForest birds

Pileated Woodpecker in New Hampshire has surged: up 15× on the route-weighted index since 1968.

15×Since 1968TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
25Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Pileated Woodpecker Trends in New HampshireNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Pileated Woodpecker has surged in New Hampshire: up 15× on the route-weighted index since 1968.

Pileated Woodpecker Population Forecast in New Hampshire

If the recent trend holds, Pileated Woodpecker in New Hampshire is projected to rise about 41% by 2030 — from 1.6 in 2025 to a central estimate of 2.2 (95% range 1.6–2.8). A 5-year backtest shows a typical error of ±12%, with 100% of held-out values landing inside the 95% band.

+41%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
2.2Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
1.6–2.895% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±12%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Pileated Woodpecker in New Hampshire is projected to rise about 41% by 2030 — from 1.6 in 2025 to a central estimate of 2.2 (95% range 1.6–2.8). A 5-year backtest shows a typical error of ±12%, with 100% of held-out values landing inside the 95% band.19662030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20262.11.52.7
20272.11.52.7
20282.11.62.7
20292.21.62.8
20302.21.62.8

Pileated Woodpecker Survey Routes in New Hampshire

Routes recording Pileated Woodpecker in New Hampshire.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Wilmot520241967
Lempster520251988
Jefferson Hl520241967
Strafford420251969
Marlow420251967
Epsom320251969
Canterbury320251979
East Kingston320252000
Peterborough220231971
Dover220251973
Hopkinton220251968
Milan220251966
Stratford220211980
Fitzwilliam120251970
Concord120251982
Gilmantn I W120241976
Mt Chocorua120251970
Walpole120251975
Crawford Not119751967
Franconia120241966
Dixvil Notch120161967
Clarksville120251977
Glen120251979
Jeffers Ntch120251994
Dixville Notch 2120252021

Pileated Woodpecker Population Trend in Other States

alabamaarkansascaliforniaconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.