Species · BCR 4 · BBS 2025 Release · 1966–2024
Bohemian Waxwing In BCR 4
Bohemian Waxwing in BCR 4 has fallen sharply: down 67% on the route-weighted index since 1976.
-67%Since 1976
57Routes In Region
46Years
Notable Signals
long arc declinecomputed index
Bohemian Waxwing has fallen sharply in BCR 4: down 67% on the route-weighted index since 1976.
Forecast
If the recent trend holds, Bohemian Waxwing in BCR 4 is projected to fall about 73% by 2029 — from 1.2 in 2024 to a central estimate of 0.33 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±52.1%, with 100% of held-out values landing inside the 95% band.
-73%Change by 2029
0.33Projected 2029 index
0.00–2.095% range
±52.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.42 | 0.00 | 2.1 |
| 2026 | 0.40 | 0.00 | 2.1 |
| 2027 | 0.37 | 0.00 | 2.0 |
| 2028 | 0.35 | 0.00 | 2.0 |
| 2029 | 0.33 | 0.00 | 2.0 |
Routes In BCR 4
| Toklat | ALASKA | 15 | 1982 |
| Nabesna Road | ALASKA | 13 | 2024 |
| Northway | ALASKA | 11 | 2022 |
| Lake Louise | ALASKA | 11 | 2012 |
| Swan Lake Rd | ALASKA | 9 | 1994 |
| Moose Creek | ALASKA | 9 | 2016 |
| Eagle | ALASKA | 8 | 2024 |
| Kanuti Canyn | ALASKA | 7 | 2024 |
| Goose Bay | ALASKA | 6 | 1976 |
| Hatcher Pass | ALASKA | 6 | 1985 |
| Chatanika R | ALASKA | 5 | 2023 |
| Tangle Lakes | ALASKA | 5 | 1987 |
| Bear Creek | ALASKA | 4 | 1990 |
| Nicholai Sl | ALASKA | 4 | 2021 |
| Coldfoot | ALASKA | 4 | 2022 |
| Kuskulana | ALASKA | 4 | 2024 |
| Monahan | ALASKA | 3 | 2021 |
| Cantwell | ALASKA | 3 | 2019 |
| Matanuska | ALASKA | 3 | 1983 |
| Kenny Lake | ALASKA | 3 | 2022 |
| Tonsina | ALASKA | 3 | 2021 |
| Unalakleet River | ALASKA | 3 | 2019 |
| Mt. Fairplay | ALASKA | 3 | 2022 |
| Mud River | ALASKA | 3 | 2024 |
| Anvik River | ALASKA | 3 | 2019 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.