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) adult, Kamchatka, eastern Siberia. Picture: Peter Adriaens.

Please also visit Peter's Pbase account and his Picasaweb albums for many more pictures!

Adult Slaty-backed Gulls collected in Kamchatka, eastern Siberia, in summer - with adult Great Black-backed Gull for comparison of upperpart grey tone (top right). Collection of the Zoological Museum in Moscow, Russia.