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) 1st cycle (1CY), October 20 2011, Chiba Prefecture, Japan. Picture: Seichoudoku.

Please visit Seichoudoku's blog for many more pictures!

Juvenile plumage, several scaps missing.