BirdAnalyst
Species · Oregon · BBS 2025 Release · 1966–2024

Calliope Hummingbird Population Trend in Oregon

All statesGeneralists

Calliope Hummingbird in Oregon has fallen sharply: down 52% on the route-weighted index since 1971.

-52%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 →
37Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
47YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Calliope Hummingbird Trends in OregonNotable 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 declinecomputed 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 →

Calliope Hummingbird has fallen sharply in Oregon: down 52% on the route-weighted index since 1971.

Calliope Hummingbird Population Forecast in Oregon

If the recent trend holds, Calliope Hummingbird in Oregon is projected to stay roughly flat through 2029, near 0.06 (95% range 0.00–0.16). A 5-year backtest shows a typical error of ±149%, 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 →
0.06Projected 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 →
0.00–0.1695% 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 →
±149%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 Oregon is projected to stay roughly flat through 2029, near 0.06 (95% range 0.00–0.16). A 5-year backtest shows a typical error of ±149%, 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 →
20250.060.000.17
20260.060.000.17
20270.060.000.17
20280.060.000.16
20290.060.000.16

Calliope Hummingbird Survey Routes in Oregon

Routes recording Calliope Hummingbird in Oregon.
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 →
Newbridge420241992
Hells Canyon320212005
Logdell220221971
Modoc Point219701970
Mt Hood219991987
Troy220131992
Unity220031994
Black Mtn.220021993
Sisters220152005
Paunina220102006
Summit Pr120181988
Cool Camp120062006
Ochoco119791977
Wickiup120001969
Bridgeport120171990
Days Creek119921987
Paisley119731973
Bly 2120232007
Pendleton119781978
Camp Sherman119961979
Mount Vernon119971997
Granite119881986
Clearwater120132009
Silver Creek120242022
Secret Val119921992

Calliope Hummingbird Population Trend in Other States

californiaidahomontananevadautahwashingtonwyoming

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