Species · BCR 4 · BBS 2025 Release · 1966–2024
Townsend's Solitaire In BCR 4
Townsend's Solitaire in BCR 4 has increased: up 28% on the route-weighted index since 1985.
+28%Since 1985
18Routes In Region
34Years
Notable Signals
No notable trend signals for Townsend's Solitaire in BCR 4. See the full index history below.
Forecast
If the recent trend holds, Townsend's Solitaire in BCR 4 is projected to fall about 18% by 2029 — from 0.22 in 2024 to a central estimate of 0.18 (95% range 0.00–0.40). A 5-year backtest shows a typical error of ±73.6%, with 100% of held-out values landing inside the 95% band.
-18%Change by 2029
0.18Projected 2029 index
0.00–0.4095% range
±73.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.18 | 0.00 | 0.40 |
| 2026 | 0.18 | 0.00 | 0.40 |
| 2027 | 0.18 | 0.00 | 0.40 |
| 2028 | 0.18 | 0.00 | 0.40 |
| 2029 | 0.18 | 0.00 | 0.40 |
Routes In BCR 4
| Donelly Dome | ALASKA | 5 | 2022 |
| Chistochina | ALASKA | 2 | 2024 |
| Chena Hot Sp | ALASKA | 2 | 1985 |
| Chicken | ALASKA | 2 | 2024 |
| Petersville | ALASKA | 2 | 2014 |
| Coldfoot | ALASKA | 2 | 2022 |
| Kanuti Canyn | ALASKA | 2 | 2024 |
| Mccarthy Rd2 | ALASKA | 2 | 1989 |
| Eagle | ALASKA | 1 | 2024 |
| Toklat | ALASKA | 1 | 2004 |
| Matanuska | ALASKA | 1 | 1982 |
| Kenny Lake | ALASKA | 1 | 2019 |
| Hatcher Pass | ALASKA | 1 | 2019 |
| Moose Creek | ALASKA | 1 | 2021 |
| Mt. Fairplay | ALASKA | 1 | 2024 |
| Mud River | ALASKA | 1 | 1996 |
| Ft. Richrdsn | ALASKA | 1 | 2001 |
| Kuskulana | ALASKA | 1 | 2018 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.