The bird order Casuariiformes has four surviving members: the three species of cassowary, and the only remaining species of emu. The emus are classified in the family, Dromaiidae, while the cassowaries are all located within the Casuariidae family. All four members of the order are very large flightless birds native to Australia-New Guinea. The ch... Found on http://en.wikipedia.org/wiki/Casuariiformes