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) DKC 3099223 1st cycle (1CY), December 20 2014, IJmuiden, the Netherlands.

Ringed as pullus on June 15 2014, at 49-50 Helholmvej, Skælskør, Slagelse, Seeland, Denmark (55° 11' 23 11° 12' 43).

Only single rear scapulars still juvenile. Coverts and tertials are juvenile.