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.This species breeds colonially or singly on coasts and cliffs making a lined nest on the ground or cliff. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Animal