1) Elephant bird 2) Flightless bird 3) Large, flightless bird 4) Ratite 5) Ratite bird 
gigantic flightless bird of Madagascar
• (n.) A gigantic bird found fossil in Madagascar.
extinct genus of giant flightless birds found as fossils in Pleistocene and post-Pleistocene deposits on the island of Madagascar. The remains of ... [2 related articles]
Aepyornis was a genus of gigantic birds once found in Madagascar, where it is supposed to have lived perhaps not longer than 200 years ago. It had three toes and is classed with the cursorial birds (ostrich, etc.) and laid eggs 35 centimeters in length - about six times the bulk of those of the ostrich. The bird which laid them may well have been. ...
an extinct genus of ratite birds, best known from the Pleistocene Epoch of Madagascar, having massive legs and rudimentary wings, and growing to a height of 8 ft. (2.4 m).