BirdAnalyst
Species · New Hampshire · BBS 2025 Release · 1966–2024

Eastern Wood-Pewee Population Trend in New Hampshire

All statesAerial insectivores

Eastern Wood-Pewee in New Hampshire has held roughly steady: up 4% on the route-weighted index since 1968.

+4%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 →
58YearsYears 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 stay roughly flat through 2029, near 2.6 (95% range 1.2–3.9). A 5-year backtest shows a typical error of ±22.8%, with 80% of held-out values landing inside the 95% band.

+3%Change by 2029TrendPercent 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 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
1.2–3.995% 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 →
±22.8%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 stay roughly flat through 2029, near 2.6 (95% range 1.2–3.9). A 5-year backtest shows a typical error of ±22.8%, with 80% of held-out values landing inside the 95% band.19662029
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 →
20252.71.34.0
20262.71.34.0
20272.61.34.0
20282.61.24.0
20292.61.23.9

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 →
Strafford1020241966
Brentwood719981966
Epsom720231966
Concord720241966
Dover620241966
Canterbury620241968
Marlow520241967
Fitzwilliam420241966
East Kingston420241999
Peterborough320241966
Jeffers Ntch320151993
Hopkinton220241966
Gilmantn I W220241969
Mt Chocorua220241966
Crawford Not219751966
Wilmot120241969
Walpole120241968
Lempster120231969
Jefferson Hl120241966
Franconia119961966
Milan120111969
Stratford120141966
Dixvil Notch120061966
Clarksville120191968
Glen120241975

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 2026-05-22.