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 3cy December

 

0660.jpg (79819 bytes)Great Black-backed Gull (Larus marinus) 3cy E703 December 14 2003, Westkapelle, the Netherlands. Ringed in 2001, erschelling, the Netherlands.
2121gbbgad.jpg (50050 bytes)Great Black-backed Gull (L. marinus) 3cy: December 15 2012, IJmuiden, The Netherlands.
2121gbbgad.jpg (50050 bytes)Great Black-backed Gull (L. marinus) 3cy: December 15 2012, IJmuiden, The Netherlands. Large mirror on P10, but also sub-terminal black on P10.
2121gbbgad.jpg (50050 bytes)Great Black-backed Gull (L. marinus) 3cy: December 15 2012, IJmuiden, The Netherlands. Showing underwing. Large mirror on P10, but also sub-terminal band on P10.
2121gbbgad.jpg (50050 bytes)Great Black-backed Gull (L. marinus) 3cy: December 15 2012, IJmuiden, The Netherlands. Large mirror on P10, but immature patterns on lesser coverts and central greater coverts. White tail. Much black on bill.
2121gbbgad.jpg (50050 bytes)Great Black-backed Gull (L. marinus) 3cy: December 15 2012, IJmuiden, The Netherlands. Large mirror on P10, but also sub-terminal band on P10.
2121gbbgad.jpg (50050 bytes)Great Black-backed Gull (L. marinus) 3cy: December 15 2012, IJmuiden, The Netherlands. Large mirror on P10, but immature patterns on inner coverts. Much black on bill.
2121gbbgad.jpg (50050 bytes)Great Black-backed Gull (L. marinus) 3cy: December 15 2011, Scheveningen, The Netherlands.