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) 3cy (3rd cycle), December 08 2012, Texas City Dike, Galveston County, Texas. Picture: Tripp Davenport.

Showing many immature features, in combination with mirror on P10. Note black in tail, black on tertial centre and obvious brown wash on outer and central GC.