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Species · Utah · BBS 2026 Release · 1966–2025

Broad-tailed Hummingbird Population Trend in Utah

All statesForest birds

Broad-tailed Hummingbird in Utah has declined: down 32% on the route-weighted index since 1970.

-32%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 →
90Routes 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 →
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 Broad-tailed Hummingbird Trends in UtahNotable 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 Broad-tailed Hummingbird in Utah. See the full index history below.

Broad-tailed Hummingbird Population Forecast in Utah

If the recent trend holds, Broad-tailed Hummingbird in Utah is projected to fall about 22% by 2030 — from 1.5 in 2025 to a central estimate of 1.2 (95% range 0.00–2.9). A 5-year backtest shows a typical error of ±40.1%, with 100% of held-out values landing inside the 95% band.

-22%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 →
1.2Projected 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 →
0.00–2.995% 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 →
±40.1%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, Broad-tailed Hummingbird in Utah is projected to fall about 22% by 2030 — from 1.5 in 2025 to a central estimate of 1.2 (95% range 0.00–2.9). A 5-year backtest shows a typical error of ±40.1%, 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 →
20261.30.003.0
20271.30.003.0
20281.30.003.0
20291.20.002.9
20301.20.002.9

Broad-tailed Hummingbird Survey Routes in Utah

Routes recording Broad-tailed Hummingbird in Utah.
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 →
Beck1819871968
Wasatch Nf1820241988
Hyrum1619791975
Hardware Ranch1520231994
Lost Cr. Res1320181995
Uintah Nf1219941987
Beck 21220251990
Gooseberry1020251994
La Sal 21020062003
Navajo Lake920251968
Moon Lake820021993
Hill Creek819951993
Hanna820241998
Ferron720252000
Hite619971995
Ant Flat-Ogden Can620251994
Heber Mtn.620251996
Alton 2620252021
Grizzly Rdge520251986
Hanksville520121987
La Sal520001993
Skyline Driv420251986
Soapstone420251992
M Warner Res420251994
Richfield420191994

Broad-tailed Hummingbird Population Trend in Other States

arizonacaliforniacoloradoidahomontananevadanew-mexicosouth-dakotatexaswyoming

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