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

Hairy Woodpecker In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

Hairy Woodpecker in Northern Pacific Rainforest has edged up: up 16% on the route-weighted index since 1970.

+16%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 →
147Routes 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 →
56YearsYears 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 Hairy Woodpecker in Northern Pacific Rainforest. See the full index history below.

Hairy Woodpecker In Northern Pacific Rainforest Population Forecast

If the recent trend holds, Hairy Woodpecker in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 1.2 (95% range 0.77–1.6). A 5-year backtest shows a typical error of ±26.6%, with 100% of held-out values landing inside the 95% band.

-10%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 →
1.2Projected 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 →
0.77–1.695% 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 →
±26.6%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, Hairy Woodpecker in Northern Pacific Rainforest is projected to stay roughly flat through 2029, near 1.2 (95% range 0.77–1.6). A 5-year backtest shows a typical error of ±26.6%, 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 →
20251.20.751.6
20261.20.751.6
20271.20.761.6
20281.20.761.6
20291.20.771.6

Routes In Northern Pacific Rainforest

Routes recording Hairy 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 →
Shasta LakeCALIFORNIA172024
Fish RockCALIFORNIA112014
South Fork MtnCALIFORNIA92022
Hazel CampOREGON82022
Offield MtnCALIFORNIA62014
Friday RidgeCALIFORNIA52024
Ship Mtn.CALIFORNIA52016
Redwood N.P. 2CALIFORNIA52013
Hurricane RgWASHINGTON52024
Harlequin L.ALASKA42024
NavarroCALIFORNIA42011
KorbelCALIFORNIA42024
Cool CampOREGON42009
SvensenOREGON41992
FisherOREGON42010
CougarWASHINGTON42023
Juneau AltALASKA31985
CraigALASKA32022
CordovaALASKA31983
Horse CreekCALIFORNIA32019
AlderpointCALIFORNIA32012
DirigioCALIFORNIA32014
Pilot CreekCALIFORNIA31996
Redwood N.P.CALIFORNIA32010
ClearwaterOREGON32021

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