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

Golden Eagle Population Trend in Texas

All statesGeneralists

Golden Eagle in Texas has declined: down 29% on the route-weighted index since 1972.

-29%Since 1972TrendPercent 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 →
18Routes 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 →
23YearsYears 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 TexasNotable 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 Texas. See the full index history below.

Golden Eagle Population Forecast in Texas

If the recent trend holds, Golden Eagle in Texas is projected to stay roughly flat through 2024, near 0.01 (95% range 0.00–0.02). A 5-year backtest shows a typical error of ±47.5%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2024TrendPercent 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 →
0.01Projected 2024 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.0295% 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 →
±47.5%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, Golden Eagle in Texas is projected to stay roughly flat through 2024, near 0.01 (95% range 0.00–0.02). A 5-year backtest shows a typical error of ±47.5%, with 100% of held-out values landing inside the 95% band.19702024
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 →
20200.010.000.02
20210.010.000.02
20220.010.000.02
20230.010.000.02
20240.010.000.02

Golden Eagle Survey Routes in Texas

Routes recording Golden Eagle in Texas.
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 →
Slaughter220141983
Salt Flat220132006
Peach Creek119871987
Texline119771977
Prairie Mtn.120082008
Fitzhugh119701970
Sierra Blanc120192019
Coyanda Draw120032003
Toyahvale120031996
Quitman Cyn.120072007
Marathon120092004
Hot Springs120122012
Pidcoke119811981
Shafter119831983
Altuda120061986
Valentine119741971
Canutillo120101997
Cornudas119861986

Golden Eagle Population Trend in Other States

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