Thayer's gull (Larus glaucoides thayeri)

Larus glaucoides thayeri is a species in the Larus genus. It is commonly known as Thayer's gull This name is unplaced name for the species in the family Laridae subfamily Larinae, . This species is found in breeds in the Arctic islands of Canada and winters primarily on the Pacific coast, from southern Alaska to the Gulf of California, though there are also wintering populations on the Great Lakes and the upper Mississippi River.