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) JW999 2cy, April & August 2012, Boulogne sur Mer, France (50.43 N - 01.35 E). Picture Jean-Michel Sauvage.

Bird ringed as pullus in Græsholm, Hirsholmene, Frederikshavn, Nordjylland, Denmark (57°29'32"N 010°36'30"E), ringed on June 27 2011. Recoveries:

24.04 2012 Boulogne-sur-Mer harbour, Pas-de-Calais, France 50°43'34"N 001°35'04"E
09.05 2012 Boulogne-sur-Mer beach, Pas-de-Calais, France 50°43'54"N 001°35'31"E
18.05 2012 Boulogne-sur-Mer harbour, Pas-de-Calais, France 50°43'34"N 001°35'04"E
30.05 2012 Boulogne-sur-Mer harbour, Pas-de-Calais, France 50°43'34"N 001°35'04"E
25.08 2012 Boulogne-sur-Mer harbour, Pas-de-Calais, France.

below: JW999 2cy, August 25 2012, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

Moult score: P7/-.

below: JW999 2cy, April 24 2012, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

Coverts and tertials juvenile.