Slaty-backed Gull (schistisagus) / オオセグロカモメ / 큰재갈매기

(last update: December 2015)
Coordinators:
Kim Seog-min (South Korea)
Hideo Shimura (Japan)
Peter Adriaens (Belgium)
Mars Muusse (Netherlands)

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Slaty-backed Gull (schistisagus) adult, December 26 2013, Cape Nosappu, Hokkaido, Japan. Picture: Ian Davies.

Please visit Ian's Flickr Photostream for more pictures!

Orbital ring pink, vivid gonys spot on yellow bill and yellow iris with much speckling. Broad tertial crescents and secondary tips. Upperparts grey tone about equal to graellsii Lesser Black-backed Gull. Pink legs. Strong pink, short-looking legs.