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Rhea 

Rhea is the largest bird in the continent of America and belongs to ‘ratites’ i.e. group of flightless birds because the absence of breast bone which are connected with flying muscles in flying birds. However, Rhea is not closely resembles with other members present in this group like kiwi’s, emu, cassowaries and ostrich. Its plumage is grey-brown and has dark patches on upper back and neck, around the abdomen and thighs there are white feathers. A black ring appears at the neck during the days of breeding. Legs are grey and powerful combine with strong toes that is helpful in quick running. Its sound is like mammal’s roar not resembles with any bird voice.
Two types of Rhea are there i.e. common or greater rhea and Darwin’s or lesser rhea. The greater one is 1.5 meter (5 feet) in height and has weight of 25 kg (55 lbs) while the lesser one is 0.91 meter (3 feet) in height and has weight of 10 kg (22 pounds). Advertisement