Great Black-backed Gull (Larus marinus)

(last update: October 12, 2014)
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) JZ113 2CY, January 10 2015, Boulogne-sur-Mer, France. Picture Jean-Michel Sauvage.

Ringed as pullus on July 01 2014 at Nordre Rønner, Læsø, Nordjylland, Denmark (57°21'38"N 010°55'24"E).

History:
01.07.2014 - Nordre Rønner, Læsø, Nordjylland, Denmark (57°21'38"N 010°55'24"E).
09.12 2014 - Dunkerque, Nord, France (51°02'58"N 002°17'20"E) by Julien Piette.
08.01 2015 - Boulogne sur mer "bassin Loubet", Pas-de-Calais, France (50°43'34"N 001°35'02"E).
10.01 2015 - Boulogne sur mer "bassin Loubet", Pas-de-Calais, France.

Travelling distance: 956 Km.

US: 75-99%, LS: 50-75%, TOT SCAPS: 75-99%. Coverts and tertials juvenile.