The RHEA is the largest South American bird, belonging to the family of flightless birds known as ratites. It is native to Argentina, Bolivia, Brazil, Paraguay, and Uruguay, and is the only extant member of its genus. The RHEA is a large, flightless bird that stands up to 1.5 meters tall and can weigh up to 40 kilograms. It has a long neck, long legs, and a long tail. Its plumage is grayish-brown with white spots and stripes. The RHEA is an omnivore, feeding on a variety of plants, insects, and small animals. It is also known to scavenge carrion.