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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Slaty-backed Gull (schistisagus) 1st cycle (1CY), December 25 2011, Chiba Prefecture, Japan. Picture: Seichoudoku.

Please visit Seichoudoku's blog for many more pictures!

Only few upper scaps replaced for 2nd gen feathers.