Genus Uria

Common Guillemot - The Common Murre or Common Guillemot is a large auk. It is also known as the Thin-billed Murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North-Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.

Br - The Thick-billed Murre or BrĂ¼nnich's Guillemot is a bird in the auk family . This bird is named after the Danish zoologist Morten Thrane BrĂ¼nnich. The very deeply black North Pacific subspecies Uria lomvia arra is also called Pallas' Murre after its describer.

Order : Charadriiformes
Family : Alcidae
Genus : Uria