Sea and Sage Audubon Society
- Serves Orange County. Meetings, events, field trips, conservation issues, birding in Orange County, nature slides, bird counts, educational projects, San Joaquin Wildlife Sanctuary, Audubon House, and Nature Shop.
- http://www.seaandsageaudubon.org/

Kern River Preserve
- Events, projects, and birding information for Audubon California's preserve in Weldon.
- http://kern.audubon.org/

San Joaquin Audubon Society
- Field trips, bird checklist, and bird sightings.
- http://www.sanjoaquinaudubon.org/

San Diego Audubon Society
- Field trips and section on the Silverwood Wildlife Sanctuary.
- http://www.sandiegoaudubon.org/

Conejo Valley Audubon Society
- Serves southeastern Ventura County and northwestern Los Angeles County. Events and birding in Ventura County.
- http://rsakamoto.home.mindspring.com/index.html

Stanislaus Audubon Society
- Covers Stanislaus and Merced Counties. Includes bird sightings, where to bird, field trips, and rare bird records.
- http://www.stanislausbirds.org/

Yolo Audubon Society
- Based in Davis. Programs, field trips, newsletter articles, and birding locations.
- http://www.yoloaudubon.org/

Pomona Valley Audubon Society
- News, events, newsletter articles, backyard birding, and local birding spots.
- http://faculty.jsd.claremont.edu/dguthrie/pvas/

Buena Vista Audubon Society
- Based in Oceanside, San Diego County. Information about the BVAS Nature Center, bird census data, and events.
- http://www.bvaudubon.org/

Palomar Audubon Society
- Serves inland north San Diego County. Programs, field trips, and news.
- http://palomaraudubon.org/

Eastern Sierra Audubon Society
- Based in Bishop. Programs, field trips, newsletter, and birding information.
- http://esaudubon.org/

Monterey Peninsula Audubon Society
- Events, programs, and newsletter.
- http://www.montereyaudubon.org/

Fresno Audubon Society
- Field trips, meetings, bird checklist, birding sites, and San Joaquin Valley rare bird report.
- http://www.fresnoaudubon.org

Santa Barbara Audubon Society
- Education and conservation projects, field trips, programs and events, and volunteer opportunities.
- http://www.rain.org/~audubon/

San Bernardino Valley Audubon Society
- Events calendar, trip reports, and birding sites.
- http://www.sbvas.org/

Whittier Audubon Society
- Field trips and programs.
- http://www.whittieraudubon.org/

Altacal Audubon Society
- Serves Butte, Glenn, and Tehama counties in northern California. Newsletters, trip reports, and links.
- http://www.altacal.org/

Sequoia Audubon Society
- Serves San Mateo County. Meetings, field trips, and events.
- http://www.sequoia-audubon.org/

Starr Ranch Sanctuary
- A 4000 acre preserve in Orange County. Programs, jobs and volunteer opportunities, checklists, history, photo album, and videos.
- http://www.starrranch.org/

Peregrine Audubon Society
- Based in Ukiah. Programs, field trips, bird sightings, and Mendocino County Bird Checklist.
- http://www.pacificsites.com/~chaniot/peregrine/

Pasadena Audubon Society
- News, meetings, conservation issues and projects, field trips, and birding in Pasadena.
- http://www.pasadenaaudubon.org/

Palos Verdes/South Bay Audubon Society
- Serves Palos Verdes Peninsula area near Los Angeles. Newsletters, events, and programs.
- http://www.lmconsult.com/pvaudubon/

Golden Gate Audubon Society
- Serves San Francisco, Alameda, and Contra Costa counties. Conservation issues, bird sightings, field trips, programs and projects, and other chapter news.
- http://www.goldengateaudubon.org/

Morro Coast Audubon Society
- Serves western San Luis Obispo County.
- http://www.gliderpilots.org/audubon/

Marin Audubon Society
- News and events, conservation issues, gift shop, and bird sightings.
- http://www.marinaudubon.org/

Los Angeles Audubon Society
- Programs, field trips, bird checklist, projects, and bookstore.
- http://www.laaudubon.org/

Mendocino Coast Audubon Society
- Field trips, meetings, educational and conservation projects, FAQ, bird sightings, Mendocino birding listserv, and bird and butterfly checklists.
- http://www.mcn.org/j/audubon/

Kerncrest Audubon Society
- Based in Ridgecrest. Events, newsletters, Indian Wells Valley bird sightings, and bird checklist.
- http://www.ridgecrest.ca.us/~hallowel/kerncrest/

Santa Clara Valley Audubon Society
- Based in Cupertino. Meetings, field trips, conservation and educational projects, newsletter articles, and photography section.
- http://www.scvas.org/

Sacramento Audubon Society
- Conservation issues, field trips, news and events, bird sightings, Sacramento Bird Records Committee reports, and section on the Bobelaine Audubon Sanctuary.
- http://www.sacramentoaudubon.org/

Audubon California
- Work in California to conserve and restore natural ecosystems, focusing on birds, other wildlife, and their habitats for the benefit of humanity and the earth's biological diversity.
- http://www.audubon-ca.org/

Madrone Audubon Society
- Serves Sonoma County. Events, birding in the North Bay, newsletters, kids' section, bird quiz, and action alerts.
- http://audubon.sonoma.net/