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Species · Wyoming · BBS 2026 Release · 1966–2025

Broad-tailed Hummingbird Population Trend in Wyoming

All statesForest birds

Broad-tailed Hummingbird in Wyoming has surged: up 547% on the route-weighted index since 1977.

+547%Since 1977TrendPercent 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 →
42Routes 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 →
50YearsYears 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 WyomingNotable 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 →

Broad-tailed Hummingbird has surged in Wyoming: up 547% on the route-weighted index since 1977.

Broad-tailed Hummingbird Population Forecast in Wyoming

If the recent trend holds, Broad-tailed Hummingbird in Wyoming is projected to stay roughly flat through 2030, near 0.77 (95% range 0.42–1.1). A 5-year backtest shows a typical error of ±26.8%, with 60% of held-out values landing inside the 95% band.

-6%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 →
0.77Projected 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 →
0.42–1.195% 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 →
±26.8%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 Wyoming is projected to stay roughly flat through 2030, near 0.77 (95% range 0.42–1.1). A 5-year backtest shows a typical error of ±26.8%, with 60% of held-out values landing inside the 95% band.19692030
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 →
20260.720.381.1
20270.730.391.1
20280.750.401.1
20290.760.411.1
20300.770.421.1

Broad-tailed Hummingbird Survey Routes in Wyoming

Routes recording Broad-tailed Hummingbird in Wyoming.
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 →
Wilson2220251979
Fox Park1120251992
Warbonnet920251990
Alpine620251979
Savery519951989
Riverside420251969
Hunter Peak420252024
Ryan Park420252011
Crazy Woman320242008
Colter Bay 2320242019
Buckskin Mtn320251981
Savery 2320252007
Moose220251976
Fletcher Pk220251981
Green River219781978
Walcott220251990
Ne Entrance120182018
Cody120051999
Prior Flats120251991
Sundance120152015
Colter Bay119971969
Dubois120161976
Brookhurst120171982
Mckinnon119861986
Buford120251993

Broad-tailed Hummingbird Population Trend in Other States

arizonacaliforniacoloradoidahomontananevadanew-mexicosouth-dakotatexasutah

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