Species · BCR 32 · BBS 2025 Release · 1966–2024
Bushtit In Coastal California
Bushtit in Coastal California has fallen sharply: down 50% on the route-weighted index since 1970.
-50%Since 1970
106Routes In Region
56Years
Notable Signals
No notable trend signals for Bushtit in Coastal California. See the full index history below.
Forecast
If the recent trend holds, Bushtit in Coastal California is projected to fall about 10% by 2029 — from 6.6 in 2024 to a central estimate of 5.9 (95% range 2.3–9.5). A 5-year backtest shows a typical error of ±31%, with 100% of held-out values landing inside the 95% band.
-10%Change by 2029
5.9Projected 2029 index
2.3–9.595% range
±31%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 6.1 | 2.5 | 9.7 |
| 2026 | 6.0 | 2.4 | 9.6 |
| 2027 | 6.0 | 2.4 | 9.6 |
| 2028 | 5.9 | 2.3 | 9.5 |
| 2029 | 5.9 | 2.3 | 9.5 |
Routes In Coastal California
| Poway | CALIFORNIA | 96 | 1980 |
| Morro Bay | CALIFORNIA | 81 | 2019 |
| Foster Park | CALIFORNIA | 52 | 1994 |
| Jofegan 2 | CALIFORNIA | 47 | 2024 |
| Santa Ynez | CALIFORNIA | 35 | 2019 |
| Auburn | CALIFORNIA | 35 | 1980 |
| Jackson | CALIFORNIA | 30 | 1992 |
| Elsinore Mtn | CALIFORNIA | 28 | 2024 |
| Mt Pinos 2 | CALIFORNIA | 26 | 2021 |
| Coyote | CALIFORNIA | 26 | 2024 |
| Adelaida | CALIFORNIA | 25 | 2024 |
| Colma | CALIFORNIA | 24 | 1972 |
| Orland | CALIFORNIA | 21 | 2022 |
| Moraga | CALIFORNIA | 19 | 2024 |
| Orange Cove | CALIFORNIA | 17 | 2016 |
| Stonyford | CALIFORNIA | 16 | 2018 |
| San Ysidro | CALIFORNIA | 15 | 2019 |
| Sanger | CALIFORNIA | 15 | 2024 |
| Yokohl Val | CALIFORNIA | 14 | 1997 |
| Fairfax | CALIFORNIA | 14 | 2024 |
| Carmel Val | CALIFORNIA | 14 | 2024 |
| Cuyamaca Pk | CALIFORNIA | 14 | 2024 |
| Redding | CALIFORNIA | 14 | 1980 |
| Oneals | CALIFORNIA | 14 | 2024 |
| Coalinga | CALIFORNIA | 13 | 2014 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.