American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

American Herring Gull adult, December 10 2013, Half Moon Bay, California. Picture: Alvaro Jaramillo.

Deep pale tongue on underside of P10, in combination with full sub-terminal band. P9 pattern difficult, but probably very small or no mirror. Full band on P5.