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

Rufous Hummingbird In Great Basin

All regionsGreat BasinForest birds

Rufous Hummingbird in Great Basin has declined: down 26% on the route-weighted index since 1970.

-26%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 →
60Routes 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 Rufous Hummingbird in Great Basin. See the full index history below.

Rufous Hummingbird In Great Basin Population Forecast

If the recent trend holds, Rufous Hummingbird in Great Basin is projected to stay roughly flat through 2030, near 0.24 (95% range 0.05–0.42). A 5-year backtest shows a typical error of ±9.3%, with 100% of held-out values landing inside the 95% band.

+4%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 →
0.24Projected 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 →
0.05–0.4295% 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 →
±9.3%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, Rufous Hummingbird in Great Basin is projected to stay roughly flat through 2030, near 0.24 (95% range 0.05–0.42). A 5-year backtest shows a typical error of ±9.3%, 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 →
20260.250.060.43
20270.250.060.43
20280.240.060.43
20290.240.060.43
20300.240.050.42

Routes In Great Basin

Routes recording Rufous Hummingbird 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 →
NewhalemWASHINGTON182025
IndexWASHINGTON41971
E. Mt. AdamsWASHINGTON42024
Dougal ResIDAHO32016
Suiattle RivWASHINGTON32019
MazamaWASHINGTON32022
IndexWASHINGTON31997
ImnahaOREGON22025
BuchananOREGON22013
Modoc PointOREGON22014
Camp ShermanOREGON21994
SistersOREGON22022
PauninaOREGON22004
RimrockWASHINGTON22023
SnowdenWASHINGTON22007
KendallWASHINGTON22025
LeavenworthWASHINGTON22023
WilburWASHINGTON22001
EllensburgWASHINGTON22017
Blewett PassWASHINGTON22024
Lake ChelanWASHINGTON22025
Index 2WASHINGTON22023
Cascade RivWASHINGTON22006
NubieberCALIFORNIA11997
MacdoelCALIFORNIA11974

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