Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)

Jean-Michel Sauvage (France)
Morten Helberg (Norway)
Nils Helge Lorentzen (Norway)
Mars Muusse (Netherlands)

Great Black-backed Gull (Larus marinus) 3cy JTY6 August 14 2003, Naaktstrand, Maasvlakte, the Netherlands.

Typical 3cy Great Black-backed Gull, ringed in Norway.Outer primaries P9-P10 still old second generation, P10 without a mirror. P6 fully grown, third generation.

CR-Code Blue with white code JTY6 Ringing Centre Stavanger 
Ringnumber 389116 Ringer Runar Jåbekk
Species Great Black-backed Gull (Larus marinus) 
Sex X Age Pull Date 22.06.2001
Place Storøyskjær indre, Mandal, Vest-Agder, NORWAY Co-ordinates   57.59 N - 07.27 E

01.01.2002 Helgoland, Pinneberg, Schleswig-Holstein, GERMANY         54.11 N - 07.55 E   Volker Dierschke 
14.08.2003 Maasvlakte, Rotterdam, Zuid-Holland, NETHERLANDS         51.59 N - 04.01 E   Mars Muusse