Uria is a genus of seabirds in the auk family known in Britain as guillemots, in most of North America as murres, and in Newfoundland and Labrador as turr. These are medium-sized birds with mainly brown or black plumage in the breeding season. They breed on the coasts of the northern Atlantic and Pacific Oceans. There are two species: \n* Common murre or common guillemot, Uria aalge \n* Thick-billed murre or Brünnich's guillemot, Uria lomvia The flight is strong and direct, and these species have fast wing beats due to the short wings. Some prehistoric Uria species are also known: