YELLOW-FOOTED GULL Larus livens

Juvenile and first-year

1. First-years, Salton Sea, Imperial County, California, USA, January 19, 2004 (YFGU_01 - YFGU_04)

Second-year

1. Second-year, Salton Sea, Imperial County, California, USA, January 19, 2004 (YFGU_05 - YFGU_07)

 

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