Among the geese native to America or Europe are the following:

a small European goose. It has a white face, black neck, and black-and-white tail. Its upper parts are lavender-gray barred with black, and its underparts are light gray.

a wild goose of North America,

This large goose is known for the V-formation flight of its flocks and its honking call. It is native to Canada and the United States, and has been introduced into Europe, where it breeds in Britain and Sweden. It is gray with black head and neck and light-gray breast; legs and bill are black. )

Canada geese fly in the shape of a V when they migrate. Many other swimming birds use this formation, too. It probably saves energy. It also allows birds to stay together and still see where they are flying.

How does a V-formation save energy? As the geese fly, the birds at the front of the V create upward air currents. The air currents help keep the rest of the flock up. This means that the birds at the back don’t have to work so hard to fly. They use less energy.

Like other migrating birds, Canada geese take turns leading the formation. When the leader gets tired, it drops from the front of the V. Another goose then becomes the leader.

Many domestic breeds were derived from the graylag. It is gray with a lighter head and tail, and has pink legs. One race of the graylag has an orange bill, the other a pink bill. The graylag breeds chiefly in Scotland.

native to Canada and the United States. It is noted for its plumage, pure white except for black wing tips. Legs and bill are pink. There are two races, the greater and the lesser.

with a grayish-brown head and neck, black speckled breast, pink bill, and yellow legs. Bill, lower neck, and tail underparts are marked with white. In the fall, this goose migrates in V-formation from the Arctic to Texas.