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List of birds of California - Wikipedia
34 Most Common Birds in California (with Pictures) - BirdAdviser
California birds | Audubon California
34 Most Common Birds of California [Field Guide] - Birdzilla
Top 10 Birds in California | Audubon California
Discover Bird Species in California: Diversity Guide
Birding in California | Audubon
California Birds | Audubon California
Birds - California Department of Fish and Wildlife
California Condor | Audubon Field Guide