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

Red-breasted Sapsucker In Great Basin

All regionsGreat BasinForest birds

Red-breasted Sapsucker in Great Basin has surged: up 442% on the route-weighted index since 1971.

+442%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 →
57Routes 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 →
55YearsYears 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Red-breasted Sapsucker has surged in Great Basin: up 442% on the route-weighted index since 1971.

Red-breasted Sapsucker In Great Basin Population Forecast

If the recent trend holds, Red-breasted Sapsucker in Great Basin is projected to stay roughly flat through 2029, near 0.40 (95% range 0.22–0.58). A 5-year backtest shows a typical error of ±23.4%, with 100% of held-out values landing inside the 95% band.

+8%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 →
0.40Projected 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 →
0.22–0.5895% 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 →
±23.4%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, Red-breasted Sapsucker in Great Basin is projected to stay roughly flat through 2029, near 0.40 (95% range 0.22–0.58). A 5-year backtest shows a typical error of ±23.4%, 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 →
20250.390.210.57
20260.390.210.57
20270.390.210.57
20280.400.220.58
20290.400.220.58

Routes In Great Basin

Routes recording Red-breasted Sapsucker 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 →
GlacierWASHINGTON122024
KendallWASHINGTON92024
Lake ChelanWASHINGTON81992
Crowder FlatCALIFORNIA62019
ConcreteWASHINGTON62024
LakeviewOREGON52024
Cascade RivWASHINGTON52006
Dell SpringOREGON31989
Modoc PointOREGON32014
Camp ShermanOREGON31994
Davis LakeOREGON32024
TwispWASHINGTON32007
Index 2WASHINGTON32023
MacdoelCALIFORNIA22019
Fall River MillsCALIFORNIA22007
DeschutesOREGON21969
PaisleyOREGON22024
Barnes ValOREGON21974
BlyOREGON21997
Fish LakeOREGON21976
Modoc Point 2OREGON22024
Lapham Res.OREGON22006
Wizard FallsOREGON22024
Bald Mtn.OREGON22009
Picture FlatOREGON22024

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