BirdAnalyst
Species · BCR 5 · BBS 2026 Release · 1966–2025

Western Wood-Pewee In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestAerial insectivores

Western Wood-Pewee in Northern Pacific Rainforest has declined: down 46% on the route-weighted index since 1970.

-46%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 →
144Routes In RegionSurvey 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 SignalsNotable 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 Northern Pacific Rainforest. See the full index history below.

Western Wood-Pewee In Northern Pacific Rainforest Population Forecast

If the recent trend holds, Western Wood-Pewee in Northern Pacific Rainforest is projected to fall about 42% by 2030 — from 7.4 in 2025 to a central estimate of 4.3 (95% range 1.2–7.5). A 5-year backtest shows a typical error of ±33.5%, with 80% of held-out values landing inside the 95% band.

-42%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 →
4.3Projected 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 →
1.2–7.595% 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 →
±33.5%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 Northern Pacific Rainforest is projected to fall about 42% by 2030 — from 7.4 in 2025 to a central estimate of 4.3 (95% range 1.2–7.5). A 5-year backtest shows a typical error of ±33.5%, with 80% 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 →
20264.71.57.9
20274.61.47.8
20284.51.37.7
20294.41.27.6
20304.31.27.5

Routes In Northern Pacific Rainforest

Routes recording Western Wood-Pewee in Northern Pacific Rainforest.
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 →
Horse CreekCALIFORNIA532019
GreenOREGON362025
ElktonOREGON292025
RuchOREGON292025
AdairOREGON282025
CarnationWASHINGTON282025
UmpquaOREGON272025
HoneydewCALIFORNIA252017
CarrvilleCALIFORNIA221970
EverettWASHINGTON222025
DaytonOREGON202025
Sandy RiverOREGON192006
Junction CtyCALIFORNIA182011
Secret ValOREGON182025
SalemOREGON182025
ScioOREGON172025
CoquilleOREGON172025
LoraneOREGON172025
GarfieldOREGON162025
ScappooseOREGON162025
Hay ForkCALIFORNIA152017
Burnt RanchCALIFORNIA142016
GazelleCALIFORNIA142021
SaladoOREGON142025
RainierWASHINGTON142025

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