American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

American Herring Gull sub-adult, December 12 2013, Stevenson compost, Tompkins Co, NY. Picture: Kevin McGowan.

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Complete band on bill indicate sub-adult / younger adult. Pale tongue on underside of P10 with angular end, in combination with full sub-terminal band. P9 small mirror on innerweb. Black band on P5.