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 (2CY), January 17 2012, Choshi, Japan. Picture: Michiaki Ujihara.

Please visit Japanese Gull site for many more pictures!

All scaps, except longest rear scapulars, replaced for 2nd gen feathers. Body feathers: on head, neck and side of breast replaced as well. Otherwise juvenile plumage.