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) 1st cycle / 1CY December

Slaty-backed Gull (schistisagus) 1st cycle (1CY), December 26 2013, Cape Nosappu, Hokkaido, Japan. Picture: Ian Davies.
Slaty-backed Gull (schistisagus) 1st cycle (1CY), December 25 2011, Chiba Prefecture, Japan. Picture: Seichoudoku.
Slaty-backed Gull (schistisagus) 1st cycle (1CY), December 25 2013, Rausu coastline, Hokkaido, Japan. Picture: Ian Davies.
Slaty-backed Gull (schistisagus) 1st cycle, December 27 2009 - January 04 2010, Choshi, Japan. Picture: Chris Gibbins.
Slaty-backed Gull (schistisagus) 1st cycle, December 27 2009 - January 04 2010, Choshi, Japan. Picture: Chris Gibbins.
Slaty-backed Gull (schistisagus) 1st cycle, December 27 2009 - January 04 2010, Choshi, Japan. Picture: Chris Gibbins.