Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)
Coordinators:
Jean-Michel Sauvage (France)
Morten Helberg (Norway)
Nils Helge Lorentzen (Norway)
Mars Muusse (Netherlands)

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Great Black-backed Gull (Larus marinus) JT793 1cy: September 27 2014, Ter Heijde, the Netherlands. Picture: Caroline Walta.

Ringed as pullus on June 19 2014 in Vest-Agder, Norway. 

US: 75-99%, LS: 0%, TOT SCAPS: 25-50%. Tertials and coverts juvenile.