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

Eastern Phoebe Population Trend in New Hampshire

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Eastern Phoebe in New Hampshire has increased: up 30% on the route-weighted index since 1968.

+30%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 →
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 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 stay roughly flat through 2029, near 9.7 (95% range 5.8–14). A 5-year backtest shows a typical error of ±9.3%, with 100% of held-out values landing inside the 95% band.

+2%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 →
9.7Projected 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 →
5.8–1495% 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 →
±9.3%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 Phoebe in New Hampshire is projected to stay roughly flat through 2029, near 9.7 (95% range 5.8–14). A 5-year backtest shows a typical error of ±9.3%, with 100% 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 →
20259.55.613
20269.65.713
20279.65.713
20289.65.814
20299.75.814

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 →
Epsom1920231966
Walpole1920241966
Concord1620241966
Canterbury1620241966
Fitzwilliam1520241966
Mt Chocorua1420241966
Glen1320241975
Brentwood1119981966
Strafford1120241966
Marlow1120241966
East Kingston1120241999
Peterborough1020241966
Jefferson Hl1020241966
Dover920241966
Gilmantn I W820241969
Stratford820241966
Wilmot720241966
Lempster720241966
Milan720241966
Dixville Notch 2620242018
Hopkinton520241966
Crawford Not519751966
Dixvil Notch320171967
Clarksville320241968
Jeffers Ntch220241993

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 2026-05-22.