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Species · Nevada · BBS 2026 Release · 1966–2025

Broad-tailed Hummingbird Population Trend in Nevada

All statesForest birds

Broad-tailed Hummingbird in Nevada has fallen sharply: down 52% on the route-weighted index since 1989.

-52%Since 1989TrendPercent 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 →
15Routes 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 →
34YearsYears 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 NevadaNotable 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 →

Broad-tailed Hummingbird has fallen sharply in Nevada: down 52% on the route-weighted index since 1989.

Broad-tailed Hummingbird Population Forecast in Nevada

If the recent trend holds, Broad-tailed Hummingbird in Nevada is projected to rise about 240% by 2030 — from 0.14 in 2025 to a central estimate of 0.49 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±372.5%, with 100% of held-out values landing inside the 95% band.

+240%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 →
0.49Projected 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 →
0.00–1.295% 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 →
±372.5%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 Nevada is projected to rise about 240% by 2030 — from 0.14 in 2025 to a central estimate of 0.49 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±372.5%, with 100% of held-out values landing inside the 95% band.19822030
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 →
20260.470.001.2
20270.480.001.2
20280.480.001.2
20290.480.001.2
20300.490.001.2

Broad-tailed Hummingbird Survey Routes in Nevada

Routes recording Broad-tailed Hummingbird in Nevada.
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 →
Jarbidge3220151997
Austin720182009
Humboldt Nf220062006
Walker Can220131982
Ruby Valley220001997
Majors Place219991996
Willis220251988
Comins Lake120162005
Mizpah119921992
Humboldt Nf 2120252022
Illipah119991990
Dobbin Creek119971997
Minerva120241989
Darroughs Hot Spgs120072007
Hawthorne120011997

Broad-tailed Hummingbird Population Trend in Other States

arizonacaliforniacoloradoidahomontananew-mexicosouth-dakotatexasutahwyoming

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