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 Ian's Flickr Photostream for more pictures!

Much black in tail, in combination with adult-like primaries and upperparts. Extensive head streaking.