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

Broad-tailed Hummingbird Population Trend in Nevada

All statesGeneralists

Broad-tailed Hummingbird in Nevada has fallen sharply: down 57% on the route-weighted index since 1989.

-57%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 →
33YearsYears 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 57% 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 87% by 2029 — from 0.29 in 2024 to a central estimate of 0.53 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±375.6%, with 100% of held-out values landing inside the 95% band.

+87%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 →
0.53Projected 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 →
0.00–1.395% 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 →
±375.6%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 87% by 2029 — from 0.29 in 2024 to a central estimate of 0.53 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±375.6%, with 100% of held-out values landing inside the 95% band.19822029
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 →
20250.520.001.3
20260.520.001.3
20270.530.001.3
20280.530.001.3
20290.530.001.3

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
Willis420241988
Humboldt Nf 2320242022
Humboldt Nf220062006
Walker Can220131982
Ruby Valley220001997
Majors Place219991996
Comins Lake120162005
Mizpah119921992
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 2026-05-22.