Thayer's Gull (thayeri)

(last update: January 22, 2013)
Coordinators:
Amar Ayyash (USA)
Mars Muusse (Netherlands)

thayers rings
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Thayer's Gull juvenile, November 12 2007, Lucchesi Park, Petaluma, CA, US. Picture: Tony Leukering.

Visit: Tony's Flickr photostream.

Bird in complete juvenile plumage, but single upper scapulars may be missing (or otherwise may be broken/displaced).