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Species · BCR 10 · BBS 2026 Release · 1966–2025

Calliope Hummingbird In Northern Rockies

All regionsNorthern RockiesForest birds

Calliope Hummingbird in Northern Rockies has held roughly steady: down 3% on the route-weighted index since 1970.

-3%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 →
98Routes 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 Calliope Hummingbird in Northern Rockies. See the full index history below.

Calliope Hummingbird In Northern Rockies Population Forecast

If the recent trend holds, Calliope Hummingbird in Northern Rockies is projected to rise about 26% by 2030 — from 0.23 in 2025 to a central estimate of 0.29 (95% range 0.04–0.54). A 5-year backtest shows a typical error of ±81.7%, with 100% of held-out values landing inside the 95% band.

+26%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 →
0.29Projected 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 →
0.04–0.5495% 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 →
±81.7%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, Calliope Hummingbird in Northern Rockies is projected to rise about 26% by 2030 — from 0.23 in 2025 to a central estimate of 0.29 (95% range 0.04–0.54). A 5-year backtest shows a typical error of ±81.7%, 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 →
20260.290.040.54
20270.290.040.54
20280.290.040.54
20290.290.040.54
20300.290.040.54

Routes In Northern Rockies

Routes recording Calliope Hummingbird 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 →
CentervilleIDAHO62025
NewbridgeOREGON42024
Spring LakeWASHINGTON41994
WilsonWYOMING42025
CascadeIDAHO31984
CoolinIDAHO32025
NinemileMONTANA32025
Twin LakesWASHINGTON31985
CurlewWASHINGTON32013
L Pend O NwrWASHINGTON32023
AlpineWYOMING32025
NaplesIDAHO22024
MivodenIDAHO22023
Rochat DivdeIDAHO21993
ClintonMONTANA22025
Red RockMONTANA22025
Fish CreekMONTANA22024
NoxonMONTANA22023
Swan LakeMONTANA22025
Inside RoadMONTANA22019
LogdellOREGON22022
TroyOREGON22013
Hells CanyonOREGON22025
UnityOREGON22003
Black Mtn.OREGON22002

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