This flightless South American relative of the ostriches stands about 5 feet tall with a body about the size of a sheep; no similar species in its range. Rheas roam widely on open Patagonian steppe and also occur locally in open habitats of the Andes, mainly at very high elevations. Can be confiding where used to people, but in other areas wary, running strongly and quickly. Rheas occur singly or in groups, and males take care of the young. Adults have bold pale spots on the body, first-year birds are plainer overall.
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