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) 2cy: August 11 2003, Boulogne/Mer, France (50.42 N - 01.34 E).

All wing-coverts and tertials very second generation-like. The recently moulted second generation primaries show small white tips. No old primaries left, new primaries: P1-P7 fully grown.