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)

Slaty-backed Gull (schistisagus) juvenile / 1CY July - August

Birds in fresh juvenile plumage.

Slaty-backed Gull (schistisagus) 1st cycle (1CY), September 15 2009, Nemuro, Hokkaido, Japan. Picture: Hannu Huhtinen.
Slaty-backed Gull (schistisagus) 1st cycle (1CY), September 16 2009, Hokkaido, Japan. Picture: Hannu Huhtinen.