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) NLA 6.125.594 2cy: November 25 2012, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

Ringed as 1cy on 27 September 2011 at Waddenpromenade 5, Harlingen, Friesland, NL. (but no provenance on origin).

Partial autumn moult: tt2 new, tt3 growing, gc2-3 new, mc2-3, mc7-9, 11-13 new, llc3 new.