what is the gavia immer genus
The great northern loon (Gavia immer), is a large member of the loon, or diver, family of birds.The species is known as the common loon in North America and the great northern diver in Eurasia; its current name is a compromise proposed by the International Ornithological Committee.he great northern loon (Gavia immer), is a large member of the loon, or diver, family of birds.