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 1st cycle (1CY), December 10 2013, Half Moon Bay, California. Picture: Alvaro Jaramillo.

Bi-coloured bill, completely juvenile plumage.