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) 3rd cycle (4CY) January 04 2012, Whiting, IN. Picture: Amar Ayyash.

Aged on inner primary pattern and adult type central tertials replaced in partial autumn moult.