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

Golden Eagle Population Trend in Utah

All statesGeneralists

Golden Eagle in Utah has held roughly steady: down 1% on the route-weighted index since 1970.

-1%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 →
103Routes 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 →
53YearsYears 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 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 Golden Eagle in Utah. See the full index history below.

Golden Eagle Population Forecast in Utah

If the recent trend holds, Golden Eagle in Utah is projected to rise about 52% by 2029 — from 0.36 in 2024 to a central estimate of 0.54 (95% range 0.19–0.89). A 5-year backtest shows a typical error of ±63.6%, with 100% of held-out values landing inside the 95% band.

+52%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 →
0.54Projected 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 →
0.19–0.8995% 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 →
±63.6%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 Utah is projected to rise about 52% by 2029 — from 0.36 in 2024 to a central estimate of 0.54 (95% range 0.19–0.89). A 5-year backtest shows a typical error of ±63.6%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20250.540.190.89
20260.540.190.89
20270.540.190.89
20280.540.190.89
20290.540.190.89

Golden Eagle Survey Routes in Utah

Routes recording Golden Eagle 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 →
Kelton619951992
Notch Peak320181986
Fairfield320241989
Clive320212008
Wellington 3220242012
Goshen220221976
Navajo Lake219681968
Grouse Creek220091983
Jensen220241992
Fish Springs220161987
Bonanza220121995
Wah Wah220191989
Glen Canyon220211994
Canyonlands220222019
M Warner Res220241995
Leamington220171992
Glen Canyon220172007
Book Ridge220232016
Gilson Butte 2220182018
Snowville220241999
Vernal220171999
Gandy220151997
Wellington220021997
Escalante220232001
Monticello220241999

Golden Eagle Population Trend in Other States

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