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

Downy Woodpecker In Northern Rockies

All regionsNorthern RockiesForest birds

Downy Woodpecker in Northern Rockies has declined: down 35% on the route-weighted index since 1971.

-35%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 →
125Routes 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 →
53YearsYears 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 Downy Woodpecker in Northern Rockies. See the full index history below.

Downy Woodpecker In Northern Rockies Population Forecast

If the recent trend holds, Downy Woodpecker in Northern Rockies is projected to fall about 26% by 2029 — from 0.11 in 2024 to a central estimate of 0.08 (95% range 0.00–0.26). A 5-year backtest shows a typical error of ±19.8%, with 100% of held-out values landing inside the 95% band.

-26%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 →
0.08Projected 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 →
0.00–0.2695% 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 →
±19.8%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, Downy Woodpecker in Northern Rockies is projected to fall about 26% by 2029 — from 0.11 in 2024 to a central estimate of 0.08 (95% range 0.00–0.26). A 5-year backtest shows a typical error of ±19.8%, with 100% of held-out values landing inside the 95% band.19692029
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 →
20250.100.000.27
20260.090.000.27
20270.090.000.27
20280.090.000.26
20290.080.000.26

Routes In Northern Rockies

Routes recording Downy 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 →
Hash RockOREGON72024
Nezperce NfIDAHO31992
EllistonMONTANA31994
Hunter PeakWYOMING32010
WilsonWYOMING31992
CentervilleIDAHO22019
CoolinIDAHO22018
NinemileMONTANA22022
SkalkahoMONTANA21992
Painted RockMONTANA22019
GlenMONTANA22008
Whitefish LakeMONTANA22021
WickiupOREGON22018
SpartaOREGON21999
Silver CreekOREGON21990
Howard Mdws.OREGON21994
NewbridgeOREGON22024
Eagle CreekOREGON22021
WoodruffUTAH22024
NorthportWASHINGTON21998
LovellWYOMING21995
CrowheartWYOMING22021
SeedskadeeWYOMING21993
MaybellCOLORADO11970
Great DivideCOLORADO12012

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