BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Hairy Woodpecker In Great Basin

All regionsGreat BasinForest birds

Hairy Woodpecker in Great Basin has edged up: up 18% on the route-weighted index since 1970.

+18%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 →
112Routes 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 Great Basin. See the full index history below.

Hairy Woodpecker In Great Basin Population Forecast

If the recent trend holds, Hairy Woodpecker in Great Basin is projected to stay roughly flat through 2029, near 0.64 (95% range 0.38–0.89). A 5-year backtest shows a typical error of ±14%, with 100% of held-out values landing inside the 95% band.

-2%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 →
0.64Projected 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 →
0.38–0.8995% 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 →
±14%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 Great Basin is projected to stay roughly flat through 2029, near 0.64 (95% range 0.38–0.89). A 5-year backtest shows a typical error of ±14%, 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 →
20250.620.360.87
20260.620.370.88
20270.630.370.88
20280.630.380.89
20290.640.380.89

Routes In Great Basin

Routes recording Hairy Woodpecker in Great Basin.
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 →
Bly 2OREGON122024
PaisleyOREGON112024
Crowder FlatCALIFORNIA72019
Bald Mtn.OREGON62024
SistersOREGON62024
LakeviewOREGON62024
BartleCALIFORNIA52021
HackamoreCALIFORNIA52007
TionestaCALIFORNIA52021
JarbidgeNEVADA52014
Dell SpringOREGON51990
Davis LakeOREGON52024
MacdoelCALIFORNIA42019
MadelineCALIFORNIA42018
JosephOREGON42012
BlyOREGON42001
KendallWASHINGTON42024
IngallsCALIFORNIA31994
Davis CreekCALIFORNIA32018
Comins LakeNEVADA32015
Barnes ValOREGON31987
Mt HoodOREGON32024
Lapham Res.OREGON32024
Picture FlatOREGON32024
ChinchaloOREGON32024

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