Mew Gull Larus canus canus; heinei; kamtschatschensis; brachyrhynchus

(last update: March 12, 2012)

Mew Gull kamtschatschensis adult, January 11 2009, Choshi, Japan. Picture: Akimichi Ariga.

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Pale iris. Rather dull bare parts, including an obvious dark line on greenish, mustard-yellow bill. Large mirror on P10. Upperparts distinctly dark slate-grey, nearly matching those of some Lesser Black-backed Gulls Larus fuscus graellsii, and neck heavily blotched with brown.