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) adult, January 25 2011, Choshi, Japan. Picture: Terry Townshend.

Please visit Terry's blog Birding Beijing!

Upperparts tone paler than Great Black-backed Gull close to Lesser Black-backed Gull, and this taxon has much more black in the wingtip than the former. Small red gonys spot, broas white tertial crescents and pale iris in this bird. Pink legs.