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Species · Alaska · BBS 2026 Release · 1966–2025

Western Wood-Pewee Population Trend in Alaska

All statesAerial insectivores

Western Wood-Pewee in Alaska has held roughly steady: down 8% on the route-weighted index since 1982.

-8%Since 1982TrendPercent 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 →
66Routes 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 →
45YearsYears 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 AlaskaNotable 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 Alaska. See the full index history below.

Western Wood-Pewee Population Forecast in Alaska

If the recent trend holds, Western Wood-Pewee in Alaska is projected to fall about 63% by 2030 — from 1.5 in 2025 to a central estimate of 0.54 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±89%, with 0% of held-out values landing inside the 95% band.

-63%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 →
0.54Projected 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 →
0.00–1.595% 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 →
±89%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 Alaska is projected to fall about 63% by 2030 — from 1.5 in 2025 to a central estimate of 0.54 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±89%, with 0% of held-out values landing inside the 95% band.19712030
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 →
20260.550.001.5
20270.550.001.5
20280.550.001.5
20290.540.001.5
20300.540.001.5

Western Wood-Pewee Survey Routes in Alaska

Routes recording Western Wood-Pewee in Alaska.
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 →
Mccarthy Rd22220251998
Seven Lakes1720251987
Kanuti Lake1120242006
Kuskulana1020251990
Anchor River720071989
Matanuska619831982
Lake Louise620251993
Ft. Richrdsn520231994
Chicken520252014
Tower Bluffs420222006
Goose Bay419821982
Eagle320252007
Skilak Lake319821982
Moose Creek320222015
Ruby320252017
Petersville320252008
Circle220251987
Chatanika R220212021
Ketchikan219711971
Kanuti Canyn220241998
Manley Ht Sp220221996
Mt. Fairplay220251993
Mud River220162016
Elmendorf (Short)219851984
Kenny Lake220251983

Western Wood-Pewee Population Trend in Other States

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