Environment
- 862
- Madrone Audubon Society
- Serves Sonoma County. Events, birding in the North Bay, newsletters, kids' section, bird quiz, and action alerts.
- 864
- Mendocino Coast Audubon Society
- Field trips, meetings, educational and conservation projects, FAQ, bird sightings, Mendocino birding listserv, and bird and butterfly checklists.
- 867
- Pasadena Audubon Society
- News, meetings, conservation issues and projects, field trips, and birding in Pasadena.
- 868
- Peregrine Audubon Society
- Based in Ukiah. Programs, field trips, bird sightings, and Mendocino County Bird Checklist.
- 869
- Pomona Valley Audubon Society
- News, events, newsletter articles, backyard birding, and local birding spots.
- 870
- Redwood Region Audubon Society
- Based in Eureka. News, newsletter articles, bird sightings, and birding hotspots.
- 871
- Sacramento Audubon Society
- Conservation issues, field trips, news and events, bird sightings, Sacramento Bird Records Committee reports, and section on the Bobelaine Audubon Sanctuary.
- 875
- 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.
- 876
- Stanislaus Audubon Society
- Covers Stanislaus and Merced Counties. Includes bird sightings, where to bird, field trips, and rare bird records.
- 877
- Starr Ranch Sanctuary
- A 4000 acre preserve in Orange County. Programs, jobs and volunteer opportunities, checklists, history, photo album, and videos.