Species · BCR 2 · BBS 2025 Release · 1966–2024
Parasitic Jaeger In BCR 2
Parasitic Jaeger in BCR 2 has declined: down 43% on the route-weighted index since 1991.
-43%Since 1991
13Routes In Region
32Years
Notable Signals
No notable trend signals for Parasitic Jaeger in BCR 2. See the full index history below.
Forecast
If the recent trend holds, Parasitic Jaeger in BCR 2 is projected to rise about 81% by 2029 — from 0.22 in 2024 to a central estimate of 0.40 (95% range 0.00–0.93). A 5-year backtest shows a typical error of ±138.5%, with 100% of held-out values landing inside the 95% band.
+81%Change by 2029
0.40Projected 2029 index
0.00–0.9395% range
±138.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.40 | 0.00 | 0.93 |
| 2026 | 0.40 | 0.00 | 0.93 |
| 2027 | 0.40 | 0.00 | 0.93 |
| 2028 | 0.40 | 0.00 | 0.93 |
| 2029 | 0.40 | 0.00 | 0.93 |
Routes In BCR 2
| King Salmon | ALASKA | 3 | 2023 |
| Tupuknuk | ALASKA | 3 | 1995 |
| Kotzebue (Short) | ALASKA | 3 | 1986 |
| Cold Bay | ALASKA | 2 | 2024 |
| Teller | ALASKA | 2 | 2017 |
| Kotzebue | ALASKA | 2 | 2019 |
| Chiniak | ALASKA | 1 | 1989 |
| Cape Nome | ALASKA | 1 | 2018 |
| Council | ALASKA | 1 | 2009 |
| Nome | ALASKA | 1 | 2012 |
| Salmon Lake | ALASKA | 1 | 1998 |
| St. Mary'S | ALASKA | 1 | 2012 |
| Cold Bay (Short) | ALASKA | 1 | 1992 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.