BirdAnalyst
Species · Vermont · BBS 2025 Release · 1966–2024

Eastern Wood-Pewee Population Trend in Vermont

All statesAerial insectivores

Eastern Wood-Pewee in Vermont has edged down: down 17% on the route-weighted index since 1968.

-17%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 Wood-Pewee Trends in VermontNotable 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 Vermont. See the full index history below.

Eastern Wood-Pewee Population Forecast in Vermont

If the recent trend holds, Eastern Wood-Pewee in Vermont is projected to stay roughly flat through 2029, near 1.8 (95% range 0.69–2.9). A 5-year backtest shows a typical error of ±25.1%, with 80% of held-out values landing inside the 95% band.

-8%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 →
1.8Projected 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 →
0.69–2.995% 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 →
±25.1%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 Vermont is projected to stay roughly flat through 2029, near 1.8 (95% range 0.69–2.9). A 5-year backtest shows a typical error of ±25.1%, 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 →
20251.90.762.9
20261.80.742.9
20271.80.732.9
20281.80.712.9
20291.80.692.9

Eastern Wood-Pewee Survey Routes in Vermont

Routes recording Eastern Wood-Pewee in Vermont.
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 →
S Wallingfrd720221966
Fletcher520241970
Marlboro420241966
Stratton420241967
Shaftsbury420241966
East Haven420231966
Stowe420241988
Bristol420181995
S Reading320241966
Waterville319801967
Post Mills220241966
W Rutland220241966
Middlesex220241968
East Calais220221966
Hinesburg219941966
Grand Isle220241967
North Pownal120241966
Landgrove120221969
Gaysville120191966
St Johnsbury120231970
Northfld Fls120211980
Newbury120031987
Hardwick120241966
Greensboro120241967
Colchester120161986

Eastern Wood-Pewee Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvirginiawest-virginiawisconsin

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