BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

White-headed Woodpecker In Northern Rockies

All regionsNorthern RockiesForest birds

White-headed Woodpecker in Northern Rockies has increased: up 27% on the route-weighted index since 1974.

+27%Since 1974TrendPercent 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 →
26Routes 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 →
42YearsYears 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 Rockies. See the full index history below.

Forecast

If the recent trend holds, White-headed Woodpecker in Northern Rockies is projected to fall about 42% by 2029 — from 0.10 in 2024 to a central estimate of 0.06 (95% range 0.00–0.14). A 5-year backtest shows a typical error of ±131.5%, with 100% of held-out values landing inside the 95% band.

-42%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 →
0.06Projected 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 →
0.00–0.1495% 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 →
±131.5%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, White-headed Woodpecker in Northern Rockies is projected to fall about 42% by 2029 — from 0.10 in 2024 to a central estimate of 0.06 (95% range 0.00–0.14). A 5-year backtest shows a typical error of ±131.5%, with 100% of held-out values landing inside the 95% band.19712029
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 →
20250.060.000.13
20260.060.000.13
20270.060.000.13
20280.060.000.14
20290.060.000.14

Routes In Northern Rockies

Routes recording White-headed Woodpecker in Northern Rockies.
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 →
Donelly 2OREGON42024
OchocoOREGON32021
AlbeeOREGON21976
OchocoOREGON21975
Summit PrOREGON22022
UnityOREGON22024
NewbridgeOREGON22013
DonnellyOREGON22005
SilviesOREGON22024
KellerWASHINGTON22006
Omak CreekWASHINGTON22024
L Pend O NwrWASHINGTON22018
CentervilleIDAHO12007
Salmon RiverIDAHO12018
FloraOREGON12004
LogdellOREGON12019
WickiupOREGON12003
Eagle RockOREGON11974
Mount VernonOREGON12022
Silver CreekOREGON12024
Hash RockOREGON12024
TroyOREGON12024
Hells CanyonOREGON11996
BarnhouseOREGON12022
ChewelahWASHINGTON12018

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