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 10cy NLA 7.103.224 (Larus marinus) August 29 2012, IJmuiden, the Netherlands (52.27N - 04.33E).

Ringed as 4cy, September 2006 at IJmuiden, after taken into care; now 10cy.

Primary P4 is fully grown while P7-P10 still have to be shed.