Species · Montana · BBS 2025 Release · 1966–2024
Golden Eagle Population Trend in Montana
Golden Eagle in Montana has edged up: up 12% on the route-weighted index since 1970.
+12%Since 1970
77Routes In State
56Years
Notable Golden Eagle Trends in Montana
No notable trend signals for Golden Eagle in Montana. See the full index history below.
Golden Eagle Population Forecast in Montana
If the recent trend holds, Golden Eagle in Montana is projected to rise about 74% by 2029 — from 0.12 in 2024 to a central estimate of 0.20 (95% range 0.05–0.36). A 5-year backtest shows a typical error of ±55%, with 100% of held-out values landing inside the 95% band.
+74%Change by 2029
0.20Projected 2029 index
0.05–0.3695% range
±55%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.20 | 0.05 | 0.36 |
| 2026 | 0.20 | 0.05 | 0.36 |
| 2027 | 0.20 | 0.05 | 0.36 |
| 2028 | 0.20 | 0.05 | 0.36 |
| 2029 | 0.20 | 0.05 | 0.36 |
Golden Eagle Survey Routes in Montana
| Lima | 12 | 2019 | 1995 |
| Whitlash | 4 | 2018 | 2009 |
| Cleveland | 3 | 2015 | 1986 |
| Jordan | 3 | 2023 | 2016 |
| Chinook | 3 | 2016 | 2016 |
| Miles City | 3 | 2023 | 2019 |
| Wheat Basin | 3 | 2019 | 2018 |
| Harlem | 2 | 2002 | 1993 |
| Polson | 2 | 2023 | 1982 |
| Savage | 2 | 1995 | 1970 |
| Ingomar | 2 | 2024 | 1968 |
| Willow Creek | 2 | 1980 | 1972 |
| St Xavier | 2 | 2006 | 2006 |
| Powderville | 2 | 2022 | 1974 |
| Glen | 2 | 2023 | 2001 |
| Jordan South | 2 | 2024 | 2016 |
| Roundup | 2 | 2018 | 2016 |
| Greenough | 2 | 2000 | 1996 |
| Libby Dam | 1 | 1997 | 1997 |
| Kalispell | 1 | 1991 | 1991 |
| St Mary | 1 | 2004 | 1985 |
| Hay Lake | 1 | 2021 | 1990 |
| Sunburst | 1 | 2002 | 1971 |
| Virgelle | 1 | 2001 | 1983 |
| Malta | 1 | 2005 | 1976 |
Golden Eagle Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.