BirdAnalyst
Species · Oregon · BBS 2026 Release · 1966–2025

Golden Eagle Population Trend in Oregon

All statesBirds of prey

Golden Eagle in Oregon has held roughly steady: up 1% on the route-weighted index since 1971.

+1%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 →
51Routes 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 →
56YearsYears 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 OregonNotable 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 Oregon. See the full index history below.

Golden Eagle Population Forecast in Oregon

If the recent trend holds, Golden Eagle in Oregon is projected to fall about 30% by 2030 — from 0.22 in 2025 to a central estimate of 0.15 (95% range 0.00–0.35). A 5-year backtest shows a typical error of ±53%, with 100% of held-out values landing inside the 95% band.

-30%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 →
0.15Projected 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 →
0.00–0.3595% 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 →
±53%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 Oregon is projected to fall about 30% by 2030 — from 0.22 in 2025 to a central estimate of 0.15 (95% range 0.00–0.35). A 5-year backtest shows a typical error of ±53%, with 100% of held-out values landing inside the 95% band.19692030
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 →
20260.160.000.35
20270.160.000.35
20280.160.000.35
20290.150.000.35
20300.150.000.35

Golden Eagle Survey Routes in Oregon

Routes recording Golden Eagle in Oregon.
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 →
Joseph820251972
Imnaha520231976
Malheur Nwr419951988
Blitzen319931971
Sparta320251971
Clover Creek319771972
Trout Creek320251998
Molalla220182018
Logdell220181972
Buchanan219981982
Modoc Point219931975
Emigrant Lake 2220032003
Princeton219831972
Emigrant Lk220011981
Battle Mtn220041989
Twickenham220112010
Catlow Rim220251993
Three Forks120112011
Blitzen 2120251998
Lone Rock120211970
Summit Pr120191982
Zumwalt120042003
Deschutes119731970
Ochoco119821973
Bridgeport120251986

Golden Eagle Population Trend in Other States

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