American Herring Gull (smithsonianus)

(last update: October 30, 2015)
Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

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Western Gull (occidentalis) 1st cycle, November 18 2006, Bolsa Chica, CA, USA. Picture: David Marotta.

See David's Flickr photostream.

Note the dark mask of a Western Gull and the rather dark plumage overall, including tertials and outer primaries.