Species · BCR 4 · BBS 2025 Release · 1966–2024
Golden Eagle In BCR 4
Golden Eagle in BCR 4 has fallen sharply: down 65% on the route-weighted index since 1984.
-65%Since 1984
11Routes In Region
26Years
Notable Signals
long arc declinecomputed index
Golden Eagle has fallen sharply in BCR 4: down 65% on the route-weighted index since 1984.
Forecast
If the recent trend holds, Golden Eagle in BCR 4 is projected to stay roughly flat through 2027, near 0.02 (95% range 0.00–0.12). A 5-year backtest shows a typical error of ±53.2%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2027
0.02Projected 2027 index
0.00–0.1295% range
±53.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2023 | 0.03 | 0.00 | 0.12 |
| 2024 | 0.03 | 0.00 | 0.12 |
| 2025 | 0.02 | 0.00 | 0.12 |
| 2026 | 0.02 | 0.00 | 0.12 |
| 2027 | 0.02 | 0.00 | 0.12 |
Routes In BCR 4
| Donelly Dome | ALASKA | 2 | 2000 |
| Eagle | ALASKA | 1 | 2007 |
| Maclaren | ALASKA | 1 | 1997 |
| Monahan | ALASKA | 1 | 2021 |
| Toklat | ALASKA | 1 | 2021 |
| Savage | ALASKA | 1 | 2022 |
| Hatcher Pass | ALASKA | 1 | 2002 |
| Delta | ALASKA | 1 | 1998 |
| Pinoche Tral (Short) | ALASKA | 1 | 1984 |
| Galena (Short) | ALASKA | 1 | 2008 |
| Nabesna Road | ALASKA | 1 | 1989 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.