Larus fuscus
Yellow legs, black to dark grey back (regional variations) and black primaries with only small white spots. Generally more slender than Herring Gull and Great Black-backed, with longer and more narrow wings, and longer legs. Winter plumage with streaked head and neck. Underside of flight feathers smoky grey. Juveniles very variable, but generally darker than Herring Gulls. Young birds with completely dark inner primaries and broad terminal band to tail.
Very similar to Herring Gull, but tone more nasal.
Wikipedia: map (se also Xeno-canto below)
Birdlife ecology
Sounds:Recorded by Peter Boesman,http://www.xeno-canto.org ,CC license
