Species · California · BBS 2025 Release · 1966–2024
Common Raven Population Trend in California
Common Raven in California has surged: up 81% on the route-weighted index since 1970.
+81%Since 1970
258Routes In State
56Years
Notable Common Raven Trends in California
long arc increasecomputed index
Common Raven has surged in California: up 81% on the route-weighted index since 1970.
Common Raven Population Forecast in California
If the recent trend holds, Common Raven in California is projected to rise about 19% by 2029 — from 12 in 2024 to a central estimate of 14 (95% range 11–17). A 5-year backtest shows a typical error of ±3.8%, with 100% of held-out values landing inside the 95% band.
+19%Change by 2029
14Projected 2029 index
11–1795% range
±3.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 13 | 10 | 16 |
| 2026 | 13 | 10 | 16 |
| 2027 | 13 | 10 | 17 |
| 2028 | 14 | 11 | 17 |
| 2029 | 14 | 11 | 17 |
Common Raven Survey Routes in California
| Moreno | 104 | 2024 | 1969 |
| Willow Spgs | 90 | 1981 | 1968 |
| Carrizo Pln | 82 | 2023 | 1970 |
| South Lake | 75 | 2006 | 2006 |
| Ventucopa | 59 | 2002 | 1972 |
| Lockwood Val | 50 | 2019 | 1970 |
| Oak Grove | 48 | 2024 | 1968 |
| Oilfields | 45 | 2013 | 1978 |
| Calif City | 45 | 2015 | 1977 |
| Jacumba | 44 | 2024 | 1973 |
| Barstow | 41 | 1998 | 1969 |
| Elizabeth Lk | 41 | 2016 | 1970 |
| Bakersfield | 39 | 2023 | 1968 |
| Tracy 2 | 38 | 2024 | 2010 |
| Buena Vista | 37 | 2019 | 1990 |
| Haiwee Res | 36 | 2005 | 1975 |
| Anza 2 | 33 | 2024 | 2005 |
| Willow Springs 2 | 32 | 2024 | 2013 |
| Dorris | 31 | 2019 | 1983 |
| Tres Pinos 2 | 31 | 2011 | 2005 |
| Parkfield | 29 | 2024 | 1968 |
| Creston | 29 | 2024 | 1974 |
| Navarro | 27 | 2011 | 1972 |
| Anza | 27 | 2004 | 1970 |
| Tracy | 27 | 2009 | 1992 |
Common Raven Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.