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

(last update: December 2015)

Kim Seog-min (South Korea)
Hideo Shimura (Japan)
Peter Adriaens (Belgium)
Mars Muusse (Netherlands)

Slaty-backed Gull (schistisagus) 2nd cycle, February 13 2013, Rausu, Japan. Picture: Mike Buckland.

Pale bird on underparts and head. Fresh scapulars indicate upperpart colour of adult plumage. 2nd gen flight feathers with much dark in tail.