The RHEA is a three-toed bird of South America, belonging to the family Rheidae. It is the largest bird in the Americas and is native to Argentina, Bolivia, Brazil, Paraguay, and Uruguay. The RHEA is an omnivorous species, feeding on a variety of plants, insects, and small animals. It is also known for its ability to run at high speeds and can reach up to 40 mph. The RHEA is a threatened species due to habitat destruction and hunting.