What is a "rhea"?

A rhea is a large flightless bird native to South America, belonging to the family Rheidae. They are closely related to ostriches and emus. Rheas have long necks, strong legs, and three-toed feet. They are known for their tall stature and swift running ability, allowing them to reach impressive speeds. Rheas have soft and fluffy feathers that range in color from gray to brown. These birds are herbivorous, feeding on a diet of plants, fruits, seeds, and insects. They inhabit grasslands, savannas, and open habitats. During the breeding season, male rheas engage in elaborate courtship displays to attract females. Rheas are highly social and can form large flocks. They play an important ecological role in their native habitats and are considered an iconic species of South America's fauna.