BirdAnalyst
Species · BCR 16 · BBS 2026 Release · 1966–2025

Golden Eagle In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauBirds of prey

Golden Eagle in Southern Rockies / Colorado Plateau has risen sharply: up 69% on the route-weighted index since 1970.

+69%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 →
172Routes In RegionSurvey 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 SignalsNotable 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 increasecomputed 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 →

Golden Eagle has risen sharply in Southern Rockies / Colorado Plateau: up 69% on the route-weighted index since 1970.

Golden Eagle In Southern Rockies / Colorado Plateau Population Forecast

If the recent trend holds, Golden Eagle in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2030, near 0.26 (95% range 0.10–0.41). A 5-year backtest shows a typical error of ±26.8%, with 100% of held-out values landing inside the 95% band.

+0%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 →
0.26Projected 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 →
0.10–0.4195% 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 →
±26.8%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 Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2030, near 0.26 (95% range 0.10–0.41). A 5-year backtest shows a typical error of ±26.8%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20260.260.100.41
20270.260.100.41
20280.260.100.41
20290.260.100.41
20300.260.100.41

Routes In Southern Rockies / Colorado Plateau

Routes recording Golden Eagle in Southern Rockies / Colorado Plateau.
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 →
MoffatCOLORADO62025
MonticelloUTAH62025
AntonitoCOLORADO51996
GreasewoodARIZONA41996
AltonahUTAH42025
CortezCOLORADO32008
Rifle FallsCOLORADO32021
Book RidgeUTAH32025
BicknellUTAH32025
Castle ButteARIZONA22006
Navajo TrailARIZONA22018
AspenCOLORADO21998
Cheesman LkCOLORADO22018
BlancaCOLORADO21987
Wilson CreekCOLORADO22025
WaldenCOLORADO22024
TarryallCOLORADO22023
TincupCOLORADO22009
Gribbles PrkCOLORADO22024
Yellowjacket PassCOLORADO22025
Mesaverde NpCOLORADO22024
FarmingtonNEW-MEXICO21976
NageesiNEW-MEXICO22018
La CienegaNEW-MEXICO21968
ValenciaNEW-MEXICO21987

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