BirdAnalyst
Species · Oregon · BBS 2026 Release · 1966–2025

Western Wood-Pewee Population Trend in Oregon

All statesAerial insectivores

Western Wood-Pewee in Oregon has held roughly steady: down 3% on the route-weighted index since 1970.

-3%Since 1970TrendPercent 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 →
128Routes 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 →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Western Wood-Pewee Trends in OregonNotable 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 Western Wood-Pewee in Oregon. See the full index history below.

Western Wood-Pewee Population Forecast in Oregon

If the recent trend holds, Western Wood-Pewee in Oregon is projected to fall about 15% by 2030 — from 9.1 in 2025 to a central estimate of 7.7 (95% range 5.0–11). A 5-year backtest shows a typical error of ±12.3%, with 100% of held-out values landing inside the 95% band.

-15%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 →
7.7Projected 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 →
5.0–1195% 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 →
±12.3%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, Western Wood-Pewee in Oregon is projected to fall about 15% by 2030 — from 9.1 in 2025 to a central estimate of 7.7 (95% range 5.0–11). A 5-year backtest shows a typical error of ±12.3%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20267.85.011
20277.85.011
20287.85.011
20297.75.011
20307.75.011

Western Wood-Pewee Survey Routes in Oregon

Routes recording Western Wood-Pewee in Oregon.
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 →
Silver Creek4620251984
Wallowa4420252025
Mount Vernon4020241986
Green3620251994
Modoc Point3120181969
Summit Pr3020251980
Elkton2920251972
Ruch2920251992
Donelly 22920252018
Adair2820251971
Umpqua2720251968
Modoc Point 22720252024
Lapham Res.2620251991
Ochoco2620251993
Barnes Val2519871974
Donnelly2220061994
Flora2120231986
Newbridge2120251993
Chinchalo2120251993
Dayton2020251973
Picture Flat1920251993
Sandy River1920061993
Secret Val1820251975
Salem1820251993
Scio1720251972

Western Wood-Pewee Population Trend in Other States

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