Black guillemot or tystie (Cepphus grylle)

Cepphus grylle is a species in the Cepphus genus. It is commonly known as Black guillemot or tystie This name is unplaced name for the species in the family Alcidae subfamily Alcinae, tribe Cepphini, . . This species is found in Circumpolar: Arctic coasts, North Atlantic, Alaska.