Species · BCR 2 · BBS 2025 Release · 1966–2024
Whimbrel In BCR 2
Whimbrel in BCR 2 has declined: down 30% on the route-weighted index since 1993.
-30%Since 1993
11Routes In Region
33Years
Notable Signals
No notable trend signals for Whimbrel in BCR 2. See the full index history below.
Forecast
If the recent trend holds, Whimbrel in BCR 2 is projected to fall about 26% by 2029 — from 0.89 in 2024 to a central estimate of 0.66 (95% range 0.00–3.6). A 5-year backtest shows a typical error of ±101.6%, with 80% of held-out values landing inside the 95% band.
-26%Change by 2029
0.66Projected 2029 index
0.00–3.695% range
±101.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.85 | 0.00 | 3.8 |
| 2026 | 0.80 | 0.00 | 3.7 |
| 2027 | 0.76 | 0.00 | 3.7 |
| 2028 | 0.71 | 0.00 | 3.6 |
| 2029 | 0.66 | 0.00 | 3.6 |
Routes In BCR 2
| King Salmon | ALASKA | 46 | 2023 |
| Kugarak (Short) | ALASKA | 16 | 1987 |
| Kotzebue (Short) | ALASKA | 16 | 1994 |
| Selawik (Short) | ALASKA | 7 | 1987 |
| Kotzebue | ALASKA | 5 | 2024 |
| Cape Nome | ALASKA | 3 | 2024 |
| Nome | ALASKA | 3 | 2023 |
| St. Mary'S | ALASKA | 3 | 2014 |
| Teller | ALASKA | 2 | 2010 |
| Gweek River | ALASKA | 2 | 2002 |
| Council | ALASKA | 1 | 2012 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.