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) NLA 7105682 3cy, September 24 2014, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

Probably ringed as pullus on June 19 2012 at island Griend, the Netherlands (53°15'0 N, 5°15'0 E). See NLA 7105677.

P9 fully grown. Partial autumn moult started in coverts and upper tertials, new feathers look blackish.