American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

American Herring Gull (smithsonianus) sub-adult, May 25 2012, Monhegan Island, Lincoln Co., Maine. Picture: Jonathan Mays.

Note dark tertial centres and brown wash on some coverts. Probably male, with partner behind.