Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)

Great Black-backed Gull (Larus marinus) 1cy: October 01 2001, Boulogne sur Mer, France (50.42 N - 01.34 E).

Note the very strong bill and square head, probably this is a male.

(below) Same bird as previous image. Note the size difference with the Lesser Black-backed Gull in the background and the less attenuated rear end in the Great Black-backed Gull. Top image: together with Herring Gull.