Rheas (/ ˈriːəz / REE-əz), also known as ñandus[a] (/ njænˈduːz / nyan-DOOZ) or South American ostrich, [3][4] are South American ratites (flightless birds without a keel on their sternum bone) of the order Rheiformes.

Everything you should know about the Rhea. The Rhea is a tall, flightless bird, native to South America, and is related to the ostrich and emu.

Apr 5, 2025 · Rhea, either of two species of large, flightless birds in the family Rheidae, order Rheiformes. They are native to South America and are related to the ostrich and emu. The common rhea (Rhea americana) is found in open country from northeastern Brazil southward to Argentina, while Darwin’s rhea.

Greater rhea are the largest native bird to South America. These graceful giants can stand up to 5.9 feet (1.8 meters) tall and weigh up to 88 pounds (40 kilograms). While they can have a similar mass to the lesser rhea, they often appear larger and are taller due to longer legs, and neck.

As the largest bird in South America, the flightless greater rhea stands at about 4 feet tall. These large South American birds roam the open pampas and sparse woodlands of Argentina and...

The Greater rhea is the largest bird in South America and the largest native, extant bird anywhere in the Americas. It is also notable for its reproductive habits, and for the fact that a population has established itself in Northern Germany in recent years.

May 27, 2024 · Rheas are ratites, a type of flightless bird with a flat breastbone with no keel. Other familiar ratites include ostriches, emus, and others. Rheas look most like ostriches, but smaller. There are currently three species of rheas, including the Greater Rhea, the Lesser Rhea or Darwin’s Rhea, and the Puna Rhea.

The largest bird in South America; resembles an ostrich and is unmistakable. Flightless and appears tailless. Mostly gray-brown overall with very long legs and neck and a proportionally small head.

Rhea is the common name for any of the large, flightless, ratite birds comprising the genus Rhea, characterized by a body with large legs, a long neck, and three-toed feet. Native to South America, the rheas resemble the ostriches of Africa and the emus of Australia.

The greater or American rhea (also called the 'Nandu') is a large, flightless bird from forests of South America. This ratite is the largest bird in the Americas. It is a fast runner; and when it runs, its neck is almost horizontal to the ground. Rheas congregate in flocks of 20 to 30 birds.