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)

Great Black-backed Gull (Larus marinus) JE668 2cy: February 09 2011, Lauwersoog, the Netherlands. Picture: Berto van Dam.

Probably ringed as pullus in June 30 2010 at Vest-Agder, Norway.

US: 75-99%, LS: 1-25%, TOT SCAPS: 50-75%. Tertials and coverts juvenile.