Altacal Audubon Society - Serves Butte Glenn and Tehama counties in northern California. Newsletters trip reports and links.

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.

Buena Vista Audubon Society - Based in Oceanside San Diego County. Information about the BVAS Nature Center bird census data and events.

Conejo Valley Audubon Society - Serves southeastern Ventura County and northwestern Los Angeles County. Events and birding in Ventura County.

Eastern Sierra Audubon Society - Based in Bishop. Programs field trips newsletter and birding information.

El Dorado Audubon Society - Based in Long Beach. Events field trips programs and projects.

Fresno Audubon Society - Field trips meetings bird checklist birding sites and San Joaquin Valley rare bird report.

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.

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

Kern River Preserve - Events projects and birding information for Audubon California's preserve in Weldon.

Kerncrest Audubon Society - Based in Ridgecrest. Events newsletters Indian Wells Valley bird sightings and bird checklist.

Los Angeles Audubon Society - Programs field trips bird checklist projects and bookstore.

Madrone Audubon Society - Serves Sonoma County. Events birding in the North Bay newsletters kids' section bird quiz and action alerts.

Marin Audubon Society - News and events conservation issues gift shop and bird sightings.

Mendocino Coast Audubon Society - Field trips meetings educational and conservation projects FAQ bird sightings Mendocino birding listserv and bird and butterfly checklists.

Monterey Peninsula Audubon Society - Events programs and newsletter.

Morro Coast Audubon Society - Serves western San Luis Obispo County.

Ohlone Audubon Society - Serves southern Alameda County. Events newsletters butterfly and hummingbird gardening and conservation issues.

Palomar Audubon Society - Serves inland north San Diego County. Programs field trips and news.

Palos Verdes/South Bay Audubon Society - Serves Palos Verdes Peninsula area near Los Angeles. Newsletters events and programs.

Pasadena Audubon Society - News meetings conservation issues and projects field trips and birding in Pasadena.

Peregrine Audubon Society - Based in Ukiah. Programs field trips bird sightings and Mendocino County Bird Checklist.

Pomona Valley Audubon Society - News events newsletter articles backyard birding and local birding spots.

Redwood Region Audubon Society - Based in Eureka. News newsletter articles bird sightings and birding hotspots.

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

San Bernardino Valley Audubon Society - Events calendar trip reports and birding sites.

San Diego Audubon Society - Field trips and section on the Silverwood Wildlife Sanctuary.

San Fernando Valley Audubon Society - Meetings field trips news and birding locations.

San Joaquin Audubon Society - Field trips bird checklist and bird sightings.

Santa Barbara Audubon Society - Education and conservation projects field trips programs and events and volunteer opportunities.

Santa Clara Valley Audubon Society - Based in Cupertino. Meetings field trips conservation and educational projects newsletter articles and photography section.

Santa Monica Bay Audubon Society - Newsletters events calendar Salton Sea conservation humor and the Central Coast Birding Trail.

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.

Sequoia Audubon Society - Serves San Mateo County. Meetings field trips and events.

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

Stanislaus Audubon Society - Covers Stanislaus and Merced Counties. Includes bird sightings where to bird field trips and rare bird records.

Starr Ranch Sanctuary - A 4000 acre preserve in Orange County. Programs jobs and volunteer opportunities checklists history photo album and videos.

Whittier Audubon Society - Field trips and programs.

Yolo Audubon Society - Based in Davis. Programs field trips newsletter articles and birding locations.