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)

Glaucous Gull (hyperboreus) 1st cycle (2CY), March 08 2016, Scheveningen, the Netherlands. Picture: Mars Muusse.