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) adult, June 27 2003, Boulogne-sur-Mer, France (50.42N,1.34E).

The complete moult has started in this bird. The inner primaries have been shed and the outer and central median coverts are missing. Some lower lesser coverts are missing as well.