American Herring Gull (smithsonianus)

(last update: October 30, 2015)
Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

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Slaty-backed Gull (schistisagus) 4th cycle (5CY), March 28 2008, Nemuro, Hokkaido, Japan. Picture: Shiroto.

Visit Shiroto's website for many more gull pictures from Japan!

Overall adult-like bird with white tail, large mirror on P10 and adult-like upperparts. Only feature is much black on bill, this bird has no red gonys spot. Yellow iris, pink legs, bold tertial crescents.