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 (4CY), February 16 2014, BP Whiting refiney, IN. Picture: Maarten van Kleinwee.

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

Small mirror on P10. Black on outerweb of P4. Isolated clear black spots in secondaries and tail. Also, markings on lesser coverts and on greater primary coverts. Black band on bill.