American Herring Gull (smithsonianus)

(last update: October 30, 2015)

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

American Herring Gull (smithsonianus), sub-adult, February 16 2014, BP Whiting refiney, IN. Picture: Maarten van Kleinwee.

Plesae visit: GULLS TO THE HORIZON, for more images.

No mirror on P10. Isolated clear black spots in tail and in secondaries. Also, black markings on tertials and on greater primary coverts.