Araucana

Bird

Araucana, also known in the USA as a South American Rumpless, is a breed of chicken originating in Chile. The Araucana is often confused with other fowl, especially the Ameraucana and Easter Egger chickens, but has several unusual characteristics which distinguish it. They lay blue eggs, have feather tufts near their ears, and no tail (In North America). To comply with the North American standard they must have no tail and are rumpless.

http://en.wikipedia.org/wiki/Araucana