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Southern screamer : ウィキペディア英語版 | Southern screamer
The southern screamer (''Chauna torquata''), also known as the crested screamer, belongs to the order Anseriformes. It is found in southeastern Peru, northern Bolivia, Paraguay, southern Brazil, Uruguay and northern Argentina.〔Clements, James, (2007) (''The Clements Checklist of the Birds of the World'' ), Cornell University Press, Ithaca〕 Its diet consists of plants stems, seeds, leaves, and, rarely, small animals. ==Description== The southern screamer averages long and weighs .〔(【引用サイトリンク】title=Southern Screamer - ''Chauna torquata'' )〕 They are the heaviest, although not necessarily the longest, of the three screamers.〔del Hoyo, Elliott & Sargatal. ''Handbook of Birds of the World, Volume 1 Ostrich to Ducks''. ISBN 84-87334-10-5〕 The wingspan is around .〔(Screamer ) (2011).〕 Among standard measurements, the wing chord measures , the tail , the culmen and the long tarsus .〔(of Birds in the British Museum )〕 It lives in tropical and sub-tropical swamps, estuaries and watersides.
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