The Thick-billed Murre is a seabird that belongs to the Alcidae family. This bird has a distinctive thick, black beak that is perfect for capturing fish, its primary food source. While it is often referred to as the Thick-billed Murre, there are a few other names that can be used to describe this bird, including the Brünnich's Guillemot, the Thick-billed Guillemot, and the Greenland Guillemot. These names are all used interchangeably and refer to the same bird species found in the northern regions of the Atlantic and Pacific oceans. Whether you call it a Thick-billed Murre, Brünnich's Guillemot, or Greenland Guillemot, this bird is an impressive and fascinating creature to behold.