Depends on the zone (A, B, or C) for the particular season. See: Upland Game Bird Summary (http://www.dfg.ca.gov/fg_comm/2003/birdflyer.pdf)
<div class='quotetop'>QUOTE </div>
Zone A:
The early mountain quail season hunting zone includes the counties of Alpine, Butte, Del Norte, Glenn, Humboldt, Inyo, Lassen, Modoc, Mono, Plumas, Shasta, Sierra, Siskiyou, Tehama, Trinity, and those portions of Amador, Calaveras, El Dorado, Fresno, Madera, Mariposa, Nevada, Placer, Tuolomne, Tulare, and Yuba counties lying east of the western boundary of the national forests.
Zone B:
The early coastal quail season (all species) hunting zone includes the counties of Marin, Napa, Solano, Sonoma, Lake, and Mendocino.
Zone C:
The balance of the state season (all species) hunting zone includes the remaining land area not included in Zone B (the counties of Marin, Napa, Solano, Sonoma, Lake, and Mendocino).[/b]