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
111795% range
±3.8%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
2025131016
2026131016
2027131017
2028141117
2029141117

Common Raven Survey Routes in California

Routes recording Common Raven in California.
Moreno10420241969
Willow Spgs9019811968
Carrizo Pln8220231970
South Lake7520062006
Ventucopa5920021972
Lockwood Val5020191970
Oak Grove4820241968
Oilfields4520131978
Calif City4520151977
Jacumba4420241973
Barstow4119981969
Elizabeth Lk4120161970
Bakersfield3920231968
Tracy 23820242010
Buena Vista3720191990
Haiwee Res3620051975
Anza 23320242005
Willow Springs 23220242013
Dorris3120191983
Tres Pinos 23120112005
Parkfield2920241968
Creston2920241974
Navarro2720111972
Anza2720041970
Tracy2720091992

Common Raven Population Trend in Other States

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.