Serves Butte, Glenn, and Tehama counties in northern California. Newsletters, trip reports, and links.

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.

Based in Oceanside, San Diego County. Information about the BVAS Nature Center, bird census data, and events.

Serves southeastern Ventura County and northwestern Los Angeles County. Events and birding in Ventura County.

Based in Bishop. Programs, field trips, newsletter, and birding information.

Based in Long Beach. Events, field trips, programs, and projects.

Field trips, meetings, bird checklist, birding sites, and San Joaquin Valley rare bird report.

Serves San Francisco, Alameda, and Contra Costa counties. Conservation issues, bird sightings, field trips, programs and projects, and other chapter news.

Serves the Bakersfield area. News and events, field trips, programs, Kern County birding, bird sightings, conservation issues, and photo gallery.

Events, projects, and birding information for Audubon California's preserve in Weldon.

Based in Ridgecrest. Events, newsletters, Indian Wells Valley bird sightings, and bird checklist.

Programs, field trips, bird checklist, projects, and bookstore.

Serves Sonoma County. Events, birding in the North Bay, newsletters, kids' section, bird quiz, and action alerts.

News and events, conservation issues, gift shop, and bird sightings.

Field trips, meetings, educational and conservation projects, FAQ, bird sightings, Mendocino birding listserv, and bird and butterfly checklists.

Events, programs, and newsletter.

Serves western San Luis Obispo County.

Serves southern Alameda County. Events, newsletters, butterfly and hummingbird gardening, and conservation issues.

Serves inland north San Diego County. Programs, field trips, and news.

Serves Palos Verdes Peninsula area near Los Angeles. Newsletters, events, and programs.

News, meetings, conservation issues and projects, field trips, and birding in Pasadena.

Based in Ukiah. Programs, field trips, bird sightings, and Mendocino County Bird Checklist.

News, events, newsletter articles, backyard birding, and local birding spots.

Based in Eureka. News, newsletter articles, bird sightings, and birding hotspots.

Conservation issues, field trips, news and events, bird sightings, Sacramento Bird Records Committee reports, and section on the Bobelaine Audubon Sanctuary.

Events calendar, trip reports, and birding sites.

Field trips and section on the Silverwood Wildlife Sanctuary.

Meetings, field trips, news, and birding locations.

Field trips, bird checklist, and bird sightings.

Education and conservation projects, field trips, programs and events, and volunteer opportunities.

Based in Cupertino. Meetings, field trips, conservation and educational projects, newsletter articles, and photography section.

Newsletters, events calendar, Salton Sea conservation, humor, and the Central Coast Birding Trail.

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.

Serves San Mateo County. Meetings, field trips, and events.

Clearing house for information about birding and other Audubon programs in southern California.

Covers Stanislaus and Merced Counties. Includes bird sightings, where to bird, field trips, and rare bird records.

A 4000 acre preserve in Orange County. Programs, jobs and volunteer opportunities, checklists, history, photo album, and videos.

Programs, field trips, newsletters, bird sightings, birding locations, and conservation issues.

Field trips and programs.

Based in Davis. Programs, field trips, newsletter articles, and birding locations.