Species · BCR 4 · BBS 2025 Release · 1966–2024
Red-tailed Hawk In BCR 4
Red-tailed Hawk in BCR 4 has declined: down 26% on the route-weighted index since 1986.
-26%Since 1986
34Routes In Region
40Years
Notable Signals
No notable trend signals for Red-tailed Hawk in BCR 4. See the full index history below.
Forecast
If the recent trend holds, Red-tailed Hawk in BCR 4 is projected to rise about 14% by 2029 — from 0.14 in 2024 to a central estimate of 0.16 (95% range 0.00–0.32). A 5-year backtest shows a typical error of ±38.7%, with 100% of held-out values landing inside the 95% band.
+14%Change by 2029
0.16Projected 2029 index
0.00–0.3295% range
±38.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.16 | 0.01 | 0.32 |
| 2026 | 0.16 | 0.01 | 0.32 |
| 2027 | 0.16 | 0.01 | 0.32 |
| 2028 | 0.16 | 0.01 | 0.32 |
| 2029 | 0.16 | 0.00 | 0.32 |
Routes In BCR 4
| Circle | ALASKA | 2 | 1987 |
| Northway | ALASKA | 2 | 2012 |
| Nicholai Sl | ALASKA | 2 | 2017 |
| Porcupine R. | ALASKA | 2 | 2002 |
| Ft. Richrdsn | ALASKA | 2 | 2022 |
| Eagle | ALASKA | 1 | 2002 |
| Chatanika R | ALASKA | 1 | 2023 |
| Birch Lake | ALASKA | 1 | 2001 |
| Slana | ALASKA | 1 | 2024 |
| Tower Bluffs | ALASKA | 1 | 2007 |
| Chistochina | ALASKA | 1 | 2024 |
| Monahan | ALASKA | 1 | 1991 |
| Cantwell | ALASKA | 1 | 2001 |
| Matanuska | ALASKA | 1 | 1982 |
| L Salcha | ALASKA | 1 | 2006 |
| Kenny Lake | ALASKA | 1 | 2024 |
| Sourdough | ALASKA | 1 | 1994 |
| Bear Creek | ALASKA | 1 | 1991 |
| Chicken | ALASKA | 1 | 2023 |
| Swan Lake Rd | ALASKA | 1 | 2011 |
| Anchor River | ALASKA | 1 | 2008 |
| Lake Louise | ALASKA | 1 | 2011 |
| Burma Road | ALASKA | 1 | 2011 |
| Caribou Mtn. | ALASKA | 1 | 2016 |
| Coldfoot | ALASKA | 1 | 2018 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.