Species · BCR 2 · BBS 2025 Release · 1966–2024
Common Goldeneye In BCR 2
Common Goldeneye in BCR 2 has collapsed: down 76% on the route-weighted index since 1995.
-76%Since 1995
8Routes In Region
20Years
Notable Signals
long arc declinecomputed index
Common Goldeneye has collapsed in BCR 2: down 76% on the route-weighted index since 1995.
Forecast
If the recent trend holds, Common Goldeneye in BCR 2 is projected to stay roughly flat through 2026, near 0.16 (95% range 0.00–0.94). A 5-year backtest shows a typical error of ±110.3%, with 100% of held-out values landing inside the 95% band.
-6%Change by 2026
0.16Projected 2026 index
0.00–0.9495% range
±110.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2022 | 0.21 | 0.00 | 0.99 |
| 2023 | 0.20 | 0.00 | 0.98 |
| 2024 | 0.18 | 0.00 | 0.96 |
| 2025 | 0.17 | 0.00 | 0.95 |
| 2026 | 0.16 | 0.00 | 0.94 |
Routes In BCR 2
| Togiak River | ALASKA | 7 | 2005 |
| Cape Nome | ALASKA | 6 | 2012 |
| Gweek River | ALASKA | 6 | 2002 |
| Dillingham | ALASKA | 3 | 2010 |
| Kanektok Riv | ALASKA | 3 | 2004 |
| King Salmon | ALASKA | 1 | 2021 |
| Tupuknuk | ALASKA | 1 | 1995 |
| Kugarak (Short) | ALASKA | 1 | 1986 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.