American Herring Gull (smithsonianus)

(last update: October 30, 2015)

Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

Slaty-backed Gull (schistisagus) adult, April 16 2012, Marinparu - Onagawa, Japan. Picture: Shigenobu Aizawa.

Please visit Aizawa's Blog for many more pictures!

Alternate plumage, breeding conditions. Not always obvious which is the male in this species; almost equal in size.