The Glaucous Gull (Larus hyperboreus) is a large gull which breeds in the Arctic regions of the northern hemisphere and the Atlantic coasts of Europe. It is migratory, wintering from in the North Atlantic and North Pacific oceans as far south as the British Isles and northernmost states of the USA, also on the Great Lakes. A few birds sometimes reach the southern USA and northern Mexico.
Glaucous-Wing Gulls (Larus glaucescens) are common inhabitants of the San Juan Islands, off Northern Washington State, where I recorded their typical wake-you-up-in-the-morning calls. This sample is a call/response by two which were vacationing at Roche Harbor.