Gull Research Organisation

(last update: December 2015)

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

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Please visit Aizawa's Blog for many more pictures!

Alternate plumage, breeding conditions. Not always obvious which is the male in this species; almost equal in size.