Great Black-backed Gull (Larus marinus)

(last update: October 12, 2011)

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

Great Black-backed Gull (Larus marinus) JE218 2cy, September 22 2011, Westkapelle, The Netherlands. Picture: Maarten van Kleinwee.

Ring info: ringed as pullus on July 12 2010, ringed at Vest-Agder, Norway.

P7 / P10. New rectrices. Note old secondary (about S17) still visible beneath new lowest tertials.