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This was fitting with the rhea being a flightless ground bird. Depending on the South American region, the rhea is known locally as ñandú guazu ( Guaraní –or related Tupi nhandú-gûasú – meaning "big spider" [ 5 ] most probably concerning their habit of opening and lowering alternate wings when they run), [ citation needed ] ema ...
The greater rhea is a silent bird except during mating season, when they make low booming noises, and as chicks, when they give a mournful whistle. [4] During the non-breeding season they will form flocks of between 10 and 100 birds. When in flocks, they tend to be less vigilant, but the males can get aggressive towards other males.
Darwin's rhea or the lesser rhea (Rhea pennata) is a large flightless bird, the smaller of the two extant species of rheas. It is found in the Altiplano and Patagonia in South America . Description
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South America has two species of rhea, large fast-running birds of the Pampas. The larger American rhea grows to about 1.4 metres (4 ft 7 in) tall and usually weighs 15 to 40 kilograms (33–88 lb). [18] The smallest ratites are the five species of kiwi from New Zealand. Kiwi are chicken-sized, shy, and nocturnal.
Of the two extant species of rheas recognized by the IUCN Red List, as of 2022, Rhea americana is listed as near threatened, [6] while Rhea pennata is listed as least concern. [7] From 2014 to 2022, the IUCN recognised Rhea tarapacensis as a separate species, and listed it as near threatened in its last assessment in 2020; [ 8 ] in 2022, it was ...
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Rheidae / ˈ r iː ɪ d iː / is a family of flightless ratite birds which first appeared in the Paleocene. [2] It is today represented by the sole living genus Rhea, but also contains several extinct genera. [3]