Greater Rhea
Photo: Rufus46 · CC BY-SA 3.0

Rheas

Greater Rhea

Rhea americana

NTNear Threatened
Family
Rheas (Rheidae)
Order
Rheiformes

Overview

The greater rhea (Rhea americana) is a species of flightless bird native to eastern South America. Other names for the greater rhea include the grey, common, or American rhea; ema (Portuguese); or ñandú (Guaraní and Spanish). One of two species in the genus Rhea, in the family Rheidae, it inhabits a variety of open areas, such as grasslands, savanna or grassy wetlands. Weighing 20–27 kilograms (44–60 lb), the greater rhea is the largest native bird in the Americas.

Summary from Wikipedia, available under CC BY-SA 4.0.

Range and habitat

Sources and further reading

Last updated September 29, 2026.