Greater

Greater rhea refers to the large South American rhea, Rhea americana, the taller and heavier of the commonly discussed rhea groups. It is a flightless ratite with long legs, gray-brown plumage, and a social, open-country lifestyle that makes it more comparable to ostrich and emu management than to ordinary poultry. In collections, the label helps separate greater rheas from lesser or Darwin's rheas, which have different ranges and management notes.

Greater rheas are kept in zoos, wildlife parks, private ratite facilities, and some farm settings where fencing, pasture layout, and breeding-season behavior can be managed safely. Males incubate eggs and guard chicks, so staff need species-aware breeding plans rather than generic bird housing. Conservation and collection records may track sex, origin, hatch dates, and transfers to avoid unnecessary mixing of taxa. Space, footing, diet, and safe public barriers are central to welfare.

Colors: Brown, Gray, Pied, White