Species · BCR 32 · BBS 2025 Release · 1966–2024
Savannah Sparrow In Coastal California
Savannah Sparrow in Coastal California has declined: down 44% on the route-weighted index since 1972.
-44%Since 1972
33Routes In Region
43Years
Notable Signals
No notable trend signals for Savannah Sparrow in Coastal California. See the full index history below.
Forecast
If the recent trend holds, Savannah Sparrow in Coastal California is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.28). A 5-year backtest shows a typical error of ±140.9%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.00Projected 2029 index
0.00–0.2895% range
±140.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.29 |
| 2026 | 0.00 | 0.00 | 0.28 |
| 2027 | 0.00 | 0.00 | 0.28 |
| 2028 | 0.00 | 0.00 | 0.28 |
| 2029 | 0.00 | 0.00 | 0.28 |
Routes In Coastal California
| Poway | CALIFORNIA | 38 | 1980 |
| Hughson | CALIFORNIA | 30 | 1977 |
| Orland | CALIFORNIA | 10 | 1993 |
| Oilfields | CALIFORNIA | 8 | 2005 |
| Riovista | CALIFORNIA | 5 | 2023 |
| Ora Loma | CALIFORNIA | 5 | 1976 |
| San Ysidro | CALIFORNIA | 4 | 1976 |
| Collegeville | CALIFORNIA | 3 | 1972 |
| Fairfax | CALIFORNIA | 3 | 1973 |
| Carrizo Pln | CALIFORNIA | 3 | 2023 |
| Glenn | CALIFORNIA | 3 | 1971 |
| Mark West | CALIFORNIA | 3 | 1992 |
| South Lake | CALIFORNIA | 3 | 2006 |
| Gravesboro | CALIFORNIA | 2 | 1991 |
| Parkfield | CALIFORNIA | 2 | 2007 |
| Morro Bay | CALIFORNIA | 2 | 1992 |
| El Toro | CALIFORNIA | 2 | 1982 |
| Lockwood Val | CALIFORNIA | 2 | 2001 |
| Yolla Bolly | CALIFORNIA | 2 | 2010 |
| Red Bluff | CALIFORNIA | 1 | 2022 |
| Santa Ynez | CALIFORNIA | 1 | 1970 |
| Coalinga | CALIFORNIA | 1 | 2013 |
| Orange Cove | CALIFORNIA | 1 | 2003 |
| Big Bear | CALIFORNIA | 1 | 1986 |
| Point Reyes | CALIFORNIA | 1 | 2014 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.