BirdAnalyst
Species · BCR 9 · BBS 2026 Release · 1966–2025

Hairy Woodpecker In Great Basin

All regionsGreat BasinForest birds

Hairy Woodpecker in Great Basin has increased: up 25% on the route-weighted index since 1970.

+25%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 →
113Routes 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 →
57YearsYears 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 2030, near 0.65 (95% range 0.40–0.90). A 5-year backtest shows a typical error of ±12.9%, with 100% of held-out values landing inside the 95% band.

-8%Change by 2030TrendPercent 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 →
0.65Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.40–0.9095% 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 →
±12.9%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 2030, near 0.65 (95% range 0.40–0.90). A 5-year backtest shows a typical error of ±12.9%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20260.630.370.88
20270.630.380.89
20280.640.390.89
20290.640.390.90
20300.650.400.90

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 →
PaisleyOREGON132025
Davis LakeOREGON92025
Lapham Res.OREGON92025
Crowder FlatCALIFORNIA72019
Bly 2OREGON62025
ChinchaloOREGON62025
BartleCALIFORNIA52021
HackamoreCALIFORNIA52007
TionestaCALIFORNIA52021
JarbidgeNEVADA52014
Dell SpringOREGON51990
MacdoelCALIFORNIA42019
Meadow VallyNEVADA42025
JosephOREGON42012
BlyOREGON42001
Picture FlatOREGON42025
NewhalemWASHINGTON42025
RimrockWASHINGTON42025
EllensburgWASHINGTON42025
IngallsCALIFORNIA31994
Davis CreekCALIFORNIA32018
Magic MtnIDAHO32025
Comins LakeNEVADA32015
Barnes ValOREGON31987
Mt HoodOREGON32024

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.