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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American Herring Gull (smithsonianus) 1st cycle / 1cy, November 19 2011, Berrien County Michigan, USA. Picture: Amar Ayyash.

US: 100%, LS: 1-25%, TOT SCAPS: 50-75% 2nd gen. Flight feathers, tertials and coverts juvenile.