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) 4cy, July 11 2009, Jamestown, Rhode Island, US. Picture: Elliot Gilfix.

Mirror on P10 and immature coverts. Moulting central primaries.