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American Rhea (Rhea americana) - Wiki
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American Rhea
From Wikipedia, the free encyclopedia
[Photo] Photo of common or greater rhea, part of a captive breeding colony at Global Wildlife Center in Folsom, Louisiana.
The American Rhea (Rhea americana), also known as the Gray, Common, or Greater Rhea is not only the largest species of rhea but the largest American bird, with adults averaging 30 kilograms (66 lb).
Farmers sometimes consider them pests, because they will eat almost any crop plant. Because of this habit, farmers sometimes kill the birds. This, along with egg gathering and habitat loss, has led to a sharp population decline; the species is listed as being of "special concern." They do not eat most crop plants, but they will eat brassicas (cabbage, and baby chard and bok choi) if very hungry soybean leaves. Rheas disdain grasses.
The American Rhea lives in grassland, savanna, scrub forest, chaparral, and even desert, but prefers areas with at least some tall vegetation. During breeding season (which ranges from August to January in South America, April to August in North America), it stays near water. It is endemic to Argentina, Bolivia, Brazil, Paraguay, and Uruguay.
Male rheas are very territorial during breeding season. The infant chicks are highly intolerant of toxins, having high mortality in typical farming situations. Baby chicks under optimum conditions will grow to four feet tall by their fifth month.
Rheas have an incredible immune system that allows injured birds to heal rapidly with little intervention. This is reflected in the commercial uses of the animal. The fat of the birds is used as an anti-inflammatory salve. Use of the meat as an energy supplement is patented in the U.S. and Canada by an American woman who has spent 12 years working to reduce chick mortality and provide a commercial basis for the species, trying to ensure its long-term survival.
The American Rhea is a threatened species as listed in CITES, although only near threatened according to the IUCN.
http://en.wikipedia.org/wiki/American_Rhea
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Greater Rhea
Common Names: ??and??, Greater Rhea, Gray Rhea, Common Rhea, American Rhea
Rhea americana
The Greater Rhea lives on the pampas, and open woodlands in the south-eastern part of South America. Although they live in the grasslands, they avoid open places and prefers areas with some tall vegetation. It prefers areas with tall vegetation near swamps or rivers. |
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The encyclopedia americana
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