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pileated woodpecker
The pileated woodpecker (''Dryocopus pileatus'') is a very large North American woodpecker, roughly crow-sized, inhabiting deciduous forests in eastern North America, the Great Lakes, the boreal forests of Canada, and parts of the Pacific coast. It is also the largest woodpecker in the United States, except the possibly extinct ivory-billed woodpecker.
==Description==
Adults are long, span across the wings and weigh , with an average weight of . Each wing measures , the tail measures , the bill is and the tarsus measures .〔''Woodpeckers: An Identification Guide to the Woodpeckers of the World'' by Hans Winkler, David A. Christie & David Nurney. Houghton Mifflin (1995), ISBN 978-0395720431〕〔()〕 They are mainly black with a red crest, and have a white line down the sides of the throat. They show white on the wings in flight. The flight of these birds is strong and direct but has an undulating quality, similar to the relatively unique flight-style of all woodpeckers. Adult males have a red line from the bill to the throat, in adult females these are black.〔(Pileated Woodpecker ), Nature Works〕 Two species found in the Old World, the white-bellied and black woodpeckers are closely related and occupy the same ecological niche in their respective ranges that the pileated occupies in North America.〔 The only North American birds of similar plumage and size are the ivory-billed woodpecker of the Southeastern United States and Cuba, and the related imperial woodpecker of Mexico. However, unlike the pileated, both of those species are extremely rare, if not extinct. Most reports of the ivory-billed woodpecker are believed to be erroneous reports of the far more common pileated.
The call is a loud, far-carrying laugh, sometimes described as a "jungle bird" call due to its wild, un-fettered quality. The northern flicker, which is very different looking and weighs about half as much as a pileated, has a similar-sounding call but has a weaker voice. Its drumming can be very loud, often sounding like someone striking a tree with a hammer.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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