American Herring Gull (smithsonianus)

(last update: October 30, 2015)

Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

Slaty-backed Gull (schistisagus) 1st cycle (1CY), October 09 2011, Chiba Prefecture, Japan. Picture: Seichoudoku.

Please visit Seichoudoku's blog for many more pictures!

Juvenile plumage.