1. Glaucous-winged Gull Larus glaucescens, first-year, San Francisco, California, USA, January 1, 2004.  Notice that the tips of the secondaries are clearly visible below the greater coverts on the folded wing.  GWGU_07

2. Glaucous-winged Gull L. glaucescens, first-year, San Francisco, California, USA, January 1, 2004.  Same individual as above.  GWGU_08

3. Glaucous-winged Gull L. glaucescens, first-year, San Francisco, California, USA, January 1, 2004.  Same individual as above.  GWGU_09

© Stephen J. Davies

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