Species · BCR 32 · BBS 2025 Release · 1966–2024
Purple Finch In Coastal California
Purple Finch in Coastal California has edged up: up 22% on the route-weighted index since 1970.
+22%Since 1970
69Routes In Region
56Years
Notable Signals
No notable trend signals for Purple Finch in Coastal California. See the full index history below.
Forecast
If the recent trend holds, Purple Finch in Coastal California is projected to rise about 70% by 2029 — from 1.9 in 2024 to a central estimate of 3.2 (95% range 1.6–4.8). A 5-year backtest shows a typical error of ±111.1%, with 20% of held-out values landing inside the 95% band.
+70%Change by 2029
3.2Projected 2029 index
1.6–4.895% range
±111.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.1 | 1.5 | 4.7 |
| 2026 | 3.1 | 1.5 | 4.7 |
| 2027 | 3.2 | 1.6 | 4.8 |
| 2028 | 3.2 | 1.6 | 4.8 |
| 2029 | 3.2 | 1.6 | 4.8 |
Routes In Coastal California
| San Benito Mtn. | CALIFORNIA | 25 | 2009 |
| Carmel Val | CALIFORNIA | 23 | 2024 |
| Pescadero | CALIFORNIA | 22 | 2024 |
| Tehama | CALIFORNIA | 18 | 2022 |
| Point Reyes | CALIFORNIA | 17 | 2023 |
| Waterman Gap | CALIFORNIA | 15 | 2024 |
| Fallsvale | CALIFORNIA | 13 | 1981 |
| Sisquoc | CALIFORNIA | 13 | 2014 |
| Ora Loma | CALIFORNIA | 12 | 1972 |
| Oneals | CALIFORNIA | 10 | 1973 |
| Santa Ynez | CALIFORNIA | 9 | 2019 |
| Valyermo | CALIFORNIA | 9 | 2019 |
| Colma | CALIFORNIA | 7 | 1972 |
| Stonyford | CALIFORNIA | 7 | 2018 |
| Lockwood | CALIFORNIA | 6 | 2024 |
| Angelus Oaks | CALIFORNIA | 6 | 2017 |
| Yokohl Val | CALIFORNIA | 5 | 1996 |
| Mt Pinos | CALIFORNIA | 5 | 2004 |
| Coalinga | CALIFORNIA | 5 | 2009 |
| Cohasset | CALIFORNIA | 5 | 2024 |
| Fairfax | CALIFORNIA | 5 | 2024 |
| Lake Hemet | CALIFORNIA | 5 | 1981 |
| Mt Baldy | CALIFORNIA | 5 | 2024 |
| Lake Cachuma | CALIFORNIA | 5 | 2016 |
| Mt Pinos 2 | CALIFORNIA | 5 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.