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Species · BCR 5 · BBS 2025 Release · 1966–2024

White-headed Woodpecker In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

White-headed Woodpecker in Northern Pacific Rainforest has declined: down 25% on the route-weighted index since 1971.

-25%Since 1971TrendPercent 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 →
16Routes 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 →
47YearsYears 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 White-headed Woodpecker in Northern Pacific Rainforest. See the full index history below.

White-headed Woodpecker In Northern Pacific Rainforest Population Forecast

If the recent trend holds, White-headed Woodpecker in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 0.07 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±89.3%, with 100% of held-out values landing inside the 95% band.

n/aChange 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 →
0.07Projected 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 →
0.00–0.1595% 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 →
±89.3%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, White-headed Woodpecker in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 0.07 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±89.3%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20250.070.000.15
20260.070.000.15
20270.070.000.15
20280.070.000.15
20290.070.000.15

Routes In Northern Pacific Rainforest

Routes recording White-headed Woodpecker 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 →
Pilot CreekCALIFORNIA61996
MccloudCALIFORNIA42021
DirigioCALIFORNIA32014
Hay ForkCALIFORNIA22017
Friday RidgeCALIFORNIA22024
South Fork MtnCALIFORNIA22022
HullvilleCALIFORNIA12006
Shasta LakeCALIFORNIA11992
Junction CtyCALIFORNIA12006
Mt ShastaCALIFORNIA12019
YrekaCALIFORNIA12018
Burnt RanchCALIFORNIA12007
French GulchCALIFORNIA12010
GazelleCALIFORNIA12014
ClearwaterOREGON12009
SelmaOREGON12024

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