Loons or divers are a group of aquatic birds found in much of North America and northern Eurasia. All living species of loons are members of the genus Gavia, family Gaviidae, and order Gaviiformes.
Gaviiformes all species of loons
1918 illustration of a variety of loons by Archibald Thorburn. Top: common loon, mid-left: red-throated loon, mid-right: yellow-billed loon, bottom: black-throated loon
Common loon (Gavia immer) rearing up: Note the plump body and pointed but rather short wings
Yellow-billed loon (Gavia adamsii) in winter plumage
The common loon or great northern diver is a large member of the loon, or diver, family of birds. Breeding adults have a plumage that includes a broad black head and neck with a greenish, purplish, or
Loon
…that the eagle had been stabbed through the heart by an adult loon's beak. Biologists at Chapman University have studied the mating behaviour of the common loon (G. immer). Contrary to popular belief, pairs seldom mate for life. Indeed, a typical adult loon is likely to have several mates during its lifetime…
Gavia immer Minocqua, Wisconsin, USA swimming 8
Juvenile off Mcgee Island, Maine