1. California Gull Larus californicus, adult, San Francisco, California, USA, February 29, 2004.  CAGU_15

2. California Gull L. californicus, adult, San Francisco, California, USA, February 29, 2004.  Same individual as above.  Close-up of head details.  CAGU_16

3. California Gull L. californicus, adult, San Francisco, California, USA, February 29, 2004.  Same individual as above.  CAGU_17

4. California Gull L. californicus, adult, San Francisco, California, USA, February 29, 2004.  A different individual. CAGU_18

© Stephen J. Davies

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