R. americana Skull Replica measures 6×2.9×3 inches. Greater Rhea Skull Replica is museum quality polyurethane cast. 2-part skull (separate cranium and jaw).
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).
The R. americana adults have an average weight of 44–60 lb. and often measure 50 to 55 in. long from beak to tail; they usually stand about 4 ft 11 in. tall. The males are generally bigger than the females.
The head and bill are fairly small, the latter measuring 3.1–4.1 in. in length. The legs are long, with the tarsus measuring between 13.2 and 14.6 in., and strong and have 22 horizontal plates on the front of the tarsus.
They have three toes, and the hind toe is absent. The wings of the American rhea are rather long; the birds use them during running to maintain balance during tight turns, and also during courtship displays.
R. americana or Greater rheas have a fluffy, tattered-looking plumage, that is gray or brown, with high individual variation, The head, neck, rump, and thighs are feathered. In general, males are darker than females. Even in the wild, particularly in Argentina—leucistic individuals (with white body plumage and blue eyes) as well as albinos occur. Hatchling greater rheas are grey with dark lengthwise stripes.
The rhea’s diet mainly consists of broad-leaved foliage, particularly seed and fruit when in season, but also insects, scorpions, fish, small rodents, reptiles, and small birds.
