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

Eastern Wood-Pewee Population Trend in New Hampshire

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Eastern Wood-Pewee in New Hampshire has held roughly steady: up 8% on the route-weighted index since 1968.

+8%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 Eastern Wood-Pewee 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 →

No notable trend signals for Eastern Wood-Pewee in New Hampshire. See the full index history below.

Eastern Wood-Pewee Population Forecast in New Hampshire

If the recent trend holds, Eastern Wood-Pewee in New Hampshire is projected to fall about 28% by 2030 — from 3.7 in 2025 to a central estimate of 2.6 (95% range 1.3–4.0). A 5-year backtest shows a typical error of ±24.3%, with 100% of held-out values landing inside the 95% band.

-28%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 →
2.6Projected 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 →
1.3–4.095% 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 →
±24.3%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, Eastern Wood-Pewee in New Hampshire is projected to fall about 28% by 2030 — from 3.7 in 2025 to a central estimate of 2.6 (95% range 1.3–4.0). A 5-year backtest shows a typical error of ±24.3%, 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 →
20262.71.34.1
20272.71.34.1
20282.71.34.0
20292.61.34.0
20302.61.34.0

Eastern Wood-Pewee Survey Routes in New Hampshire

Routes recording Eastern Wood-Pewee 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 →
Dover1620251966
Canterbury1020251968
Brentwood719981966
Concord720251966
Mt Chocorua620251966
Peterborough520251966
Fitzwilliam520251966
Epsom520251966
Wilmot520251969
Walpole420251968
Marlow420251967
Jefferson Hl420251966
East Kingston420251999
Hopkinton320251966
Jeffers Ntch320151993
Strafford220251966
Crawford Not219751966
Glen220251975
Gilmantn I W120251969
Lempster120231969
Franconia120251966
Milan120111969
Stratford120141966
Dixvil Notch120061966
Clarksville120191968

Eastern Wood-Pewee Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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