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) pre-basic moult (2CY), July 10 2016, Stratford, CT. Picture: Donna Caporaso.

In complete moult: P8-P10 old, probably P1-P4 fully grown. GC missing.