Thayer's Gull (thayeri)

(last update: January 22, 2013)

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

Thayer's Gull adult, February 20 2010, Winthrop Harbor, IL. Picture: Erik Bruhnke.

Visit: Erik's Pbase photostream.

Adult Thayer's Gull with Ring-billed Gulls. Full sub-terminal bands on P10-P5.