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) adult, January 03 2012, Seattle WA, USA. Picture: Amar Ayyash.

Plain grey greater primary coverts indicate full adult.