Species · BCR 2 · BBS 2025 Release · 1966–2024
Orange-crowned Warbler In BCR 2
Orange-crowned Warbler in BCR 2 has declined: down 29% on the route-weighted index since 1985.
-29%Since 1985
20Routes In Region
41Years
Notable Signals
No notable trend signals for Orange-crowned Warbler in BCR 2. See the full index history below.
Forecast
If the recent trend holds, Orange-crowned Warbler in BCR 2 is projected to rise about 107% by 2029 — from 14 in 2024 to a central estimate of 29 (95% range 12–45). A 5-year backtest shows a typical error of ±66.1%, with 60% of held-out values landing inside the 95% band.
+107%Change by 2029
29Projected 2029 index
12–4595% range
±66.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 28 | 11 | 45 |
| 2026 | 28 | 11 | 45 |
| 2027 | 28 | 11 | 45 |
| 2028 | 28 | 11 | 45 |
| 2029 | 29 | 12 | 45 |
Routes In BCR 2
| Katmai N.P. | ALASKA | 96 | 2022 |
| Dillingham | ALASKA | 89 | 2019 |
| Gweek River | ALASKA | 45 | 2002 |
| St. Mary'S | ALASKA | 44 | 2014 |
| Kodiak | ALASKA | 43 | 1984 |
| Dillingham (Short) | ALASKA | 41 | 1984 |
| Kodiak 2 | ALASKA | 37 | 2024 |
| Nome | ALASKA | 34 | 2023 |
| Chiniak | ALASKA | 25 | 2024 |
| King Salmon | ALASKA | 24 | 2024 |
| Togiak River | ALASKA | 24 | 2005 |
| Tupuknuk | ALASKA | 19 | 1995 |
| Salmon Lake | ALASKA | 18 | 2024 |
| Council | ALASKA | 12 | 2024 |
| Teller | ALASKA | 5 | 2024 |
| Goodnews Bay | ALASKA | 3 | 2005 |
| Cape Nome | ALASKA | 2 | 2024 |
| Cold Bay | ALASKA | 1 | 2023 |
| Kanektok Riv | ALASKA | 1 | 2005 |
| Kotzebue | ALASKA | 1 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.