Thayer's Gull (thayeri)

(last update: January 22, 2013)

Coordinators:
Amar Ayyash (USA)
Mars Muusse (Netherlands)

Thayer's Gull sub-adult, February 11 2012, Pelagic off Lewes, DE. Picture: Adrian Hinkle.

Note fine dark streaks on greater primary coverts.