Species · BCR 32 · BBS 2025 Release · 1966–2024
American Robin In Coastal California
American Robin in Coastal California has surged: up 109% on the route-weighted index since 1970.
+109%Since 1970
113Routes In Region
56Years
Notable Signals
long arc increasecomputed index
American Robin has surged in Coastal California: up 109% on the route-weighted index since 1970.
Forecast
If the recent trend holds, American Robin in Coastal California is projected to rise about 25% by 2029 — from 9.3 in 2024 to a central estimate of 12 (95% range 8.3–15). A 5-year backtest shows a typical error of ±31.9%, with 80% of held-out values landing inside the 95% band.
+25%Change by 2029
12Projected 2029 index
8.3–1595% range
±31.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 11 | 8.0 | 15 |
| 2026 | 11 | 8.1 | 15 |
| 2027 | 11 | 8.2 | 15 |
| 2028 | 12 | 8.2 | 15 |
| 2029 | 12 | 8.3 | 15 |
Routes In Coastal California
| Collegeville 2 | CALIFORNIA | 55 | 2023 |
| Point Reyes | CALIFORNIA | 46 | 2023 |
| Pescadero | CALIFORNIA | 40 | 2024 |
| Gravesboro | CALIFORNIA | 33 | 1995 |
| Green Valley | CALIFORNIA | 33 | 2023 |
| Jackson | CALIFORNIA | 32 | 1992 |
| Athlone | CALIFORNIA | 30 | 2007 |
| Pennington | CALIFORNIA | 29 | 2024 |
| Caruthers | CALIFORNIA | 28 | 1987 |
| Westley | CALIFORNIA | 27 | 2024 |
| Cohasset | CALIFORNIA | 26 | 2024 |
| Mt Pinos 2 | CALIFORNIA | 24 | 2024 |
| Hughson | CALIFORNIA | 23 | 2024 |
| Oroville | CALIFORNIA | 23 | 2024 |
| Orland | CALIFORNIA | 22 | 2022 |
| Moraga | CALIFORNIA | 21 | 2024 |
| Tipton | CALIFORNIA | 21 | 1997 |
| Staten Is. | CALIFORNIA | 21 | 2024 |
| Harbor Lake | CALIFORNIA | 20 | 1991 |
| Atwater | CALIFORNIA | 20 | 2012 |
| Auburn | CALIFORNIA | 19 | 1980 |
| Big Bear | CALIFORNIA | 18 | 1986 |
| Mark West | CALIFORNIA | 17 | 2024 |
| Waterman Gap | CALIFORNIA | 17 | 2024 |
| Fairfax | CALIFORNIA | 15 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.