Great Black-Backed Gull

http://www.audubon.org/field-guide/bird/great-black-backed-gull
Scientific:
Larus marinus
Order:
Charadriiformes
Family:
Laridae
Genus:
Laurus
English: Great Black-Backed Gull, Great Kelp Gull
Danish: Svartbag
Greenlandic: Naajarlu
Length: 27.9-31.1 in (71-79 cm)
Weight: 45.9-70.5 oz (1300-2000 g)
Wingspan: 57.5-63.0 in (146-160 cm)
Fun Facts: The Great Black-Backed is the largest Gull in the World.
maudoc, XC391790. Accessible at www.xeno-canto.org/391790.

References:
Avibase The World Bird Database (2018). Larus marinus. Found at https://avibase.bsc-eoc.org/species.jsp?avibaseid=9F8D468BDDDE6BA6
Good, Thomas P. 1998. Great Black-backed Gull (Larus marinus), version 2.0. In The Birds of North America (P. G. Rodewald, editor). Cornell Lab of Ornithology, Ithaca, New York, USA.
Sibley, David Allen. 2014. The Sibley guide to birds, second edition. Alfred A Knopf, New York.