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

Eastern Phoebe Population Trend in New Hampshire

All statesAerial insectivores

Eastern Phoebe in New Hampshire has edged up: up 19% on the route-weighted index since 1968.

+19%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 →
26Routes 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 Phoebe 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 Phoebe in New Hampshire. See the full index history below.

Eastern Phoebe Population Forecast in New Hampshire

If the recent trend holds, Eastern Phoebe in New Hampshire is projected to rise about 13% by 2030 — from 8.5 in 2025 to a central estimate of 9.6 (95% range 5.8–13). A 5-year backtest shows a typical error of ±8%, with 100% of held-out values landing inside the 95% band.

+13%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 →
9.6Projected 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 →
5.8–1395% 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 →
±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 Phoebe in New Hampshire is projected to rise about 13% by 2030 — from 8.5 in 2025 to a central estimate of 9.6 (95% range 5.8–13). A 5-year backtest shows a typical error of ±8%, 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 →
20269.55.613
20279.55.713
20289.55.713
20299.65.713
20309.65.813

Eastern Phoebe Survey Routes in New Hampshire

Routes recording Eastern Phoebe 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 →
Epsom1520251966
Canterbury1320251966
Walpole1320251966
Glen1320251975
Fitzwilliam1220251966
Brentwood1119981966
Peterborough1020251966
Wilmot1020251966
Marlow1020251966
Lempster1020251966
Dover920251966
Strafford920251966
Gilmantn I W920251969
Mt Chocorua920251966
Jefferson Hl820251966
Stratford820251966
Milan720251966
East Kingston620251999
Dixville Notch 2620252018
Hopkinton520251966
Concord520251966
Crawford Not519751966
Franconia320251966
Dixvil Notch320171967
Jeffers Ntch320251993

Eastern Phoebe Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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