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

Golden Eagle Population Trend in Nevada

All statesGeneralists

Golden Eagle in Nevada has edged down: down 17% on the route-weighted index since 1971.

-17%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 →
45Routes 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 →
45YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Golden Eagle 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 →

No notable trend signals for Golden Eagle in Nevada. See the full index history below.

Golden Eagle Population Forecast in Nevada

If the recent trend holds, Golden Eagle in Nevada is projected to rise about 39% by 2029 — from 0.36 in 2024 to a central estimate of 0.50 (95% range 0.08–0.91). A 5-year backtest shows a typical error of ±100.6%, with 80% of held-out values landing inside the 95% band.

+39%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 →
0.50Projected 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 →
0.08–0.9195% 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 →
±100.6%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, Golden Eagle in Nevada is projected to rise about 39% by 2029 — from 0.36 in 2024 to a central estimate of 0.50 (95% range 0.08–0.91). A 5-year backtest shows a typical error of ±100.6%, with 80% 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 →
20250.490.080.91
20260.490.080.91
20270.490.080.91
20280.500.080.91
20290.500.080.91

Golden Eagle Survey Routes in Nevada

Routes recording Golden Eagle 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 →
Sand Pass420211987
Humboldt Nf420181993
Vya319731969
Calico Spr319741969
Gardnerville320111992
Jarbidge320062006
Charleston Reservoir320242024
Austin320182012
Darroughs Hot Spgs320182000
Mizpah220191996
Sutcliffe219711970
Toiyabe Nf220171994
Majors Place220241971
Dobbin Creek220151970
Beatty220171987
Nelson220192006
Nixon220091978
Meadow Vally220231998
Chimney Res.220172013
Gardnerville 2220242024
Hawthorne220012001
Piute Mdws120212013
Midas120241974
Dinner Sta119921972
Ranchogrande120241990

Golden Eagle Population Trend in Other States

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