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Species · Connecticut · BBS 2025 Release · 1966–2024

Eastern Wood-Pewee Population Trend in Connecticut

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Eastern Wood-Pewee in Connecticut has increased: up 31% on the route-weighted index since 1968.

+31%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 →
20Routes 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 ConnecticutNotable 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 Connecticut. See the full index history below.

Eastern Wood-Pewee Population Forecast in Connecticut

If the recent trend holds, Eastern Wood-Pewee in Connecticut is projected to stay roughly flat through 2029, near 5.5 (95% range 3.7–7.4). A 5-year backtest shows a typical error of ±7.6%, 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 →
5.5Projected 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 →
3.7–7.495% 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 →
±7.6%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 Connecticut is projected to stay roughly flat through 2029, near 5.5 (95% range 3.7–7.4). A 5-year backtest shows a typical error of ±7.6%, 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 →
20255.43.57.3
20265.43.57.3
20275.53.67.4
20285.53.67.4
20295.53.77.4

Eastern Wood-Pewee Survey Routes in Connecticut

Routes recording Eastern Wood-Pewee in Connecticut.
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 →
Warren1520111972
Sherman1220191973
Uncasville1120241973
Woodstock820071968
Warren 2820242012
Willimantic720181967
Mid Haddam720241973
Long Hill620191972
New Hartford520241994
Woodstock 2520242016
E Hartland419921966
Danbury420231968
Southington420241973
Mystic320231973
Buckingham320221966
Westbrook320241969
No Woodbury320241967
Greenwich320181967
New Hartford319871972
Granby320241988

Eastern Wood-Pewee Population Trend in Other States

alabamaarkansasdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.