Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)

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

Great Black-backed Gull (Larus marinus) 3cy: February 02 2012, IJmuiden, the Netherlands.

No feathers in scapular region show adult-like greyish black colour. All still show internal pattern. Note typical 2nd gen primaries with rounded tips.