Glaucous-winged Gull glaucescens

(last update: 10-03-2017)

Alvaro Jaramillo
John Cant
Mars Muusse

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Glaucous-winged Gull glaucescens adult, January 15 2017, San Leandro, California. Picture: John Cant.

Pigmentation in outer primaries dark grey, about as dark as in picture 33.4 in Howell & Dunn (which picture illustrates a bird banded in a colony off the NW coast of Vancouver Isl). Debatable a "just not pure" bird, but note pink orbital ring and extensive hoooded winter head pointing strongly to glaucescens.