Thayer's Gull (thayeri)

(last update: January 22, 2013)

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

Thayer's Gull sub-adult, March 14 2011, Englishman River, Parksville, BC, Canada. Picture: Ralph Hocken.

Visit: Ralph's Flickr photostream.

Note markings on tail and wing-coverts. Sub-adult birds often have more black in the wing-tip than full adults.