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) A - 216331 October 05 2002, Boulogne sur Mer, France (50.42 N - 01.34 E).

An (near?) adult Great Black-backed Gull ringed Paris A-216331. P7 is longer than P6 (category fully grown) and all old outer primaries have been shed. Note the brand new fully grown greater coverts. As soon as data on this individual is received, this information will be added.