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apostlebird
The apostlebird (''Struthidea cinerea''), also known as the grey jumper, lazy jack or cwa bird is a quick-moving, gray or black bird about 13 inches (33 centimetres) long. It is a native to Australia where it roams woodlands, eating insects and seeds at, or near, ground level. Apostlebirds often travel in groups of about 12; for this reason they were named after the Biblical apostles, the twelve chief followers of Jesus Christ.
==Taxonomy==
Originally described by ornithologist John Gould in 1837, its specific epithet is Latin ''cinerea'' "grey". In its own genus ''Struthidea'', it is placed in the family known as the mud-nest builders or Corcoracidae, written as Grallinidae in older books before the removal of the genus ''Grallina'' to the wagtail family. It is one of two remaining species, with the white-winged chough (''Corcorax melanorhamphos''), which differs in appearance but exhibits many behavioural similarities. The mudnest builder family Corcoracidae itself is now placed in a narrower "core corvine" group, which contains the crows and ravens, shrikes, birds of paradise, fantails, monarch flycatchers, and drongos.
The apostlebird was named after the Biblical apostles, the twelve followers of Jesus Christ.〔〔Reader's Digest. 1997. "Complete Book of Australian Birds". Reader's Digest (Australia).〕 In fact, the species travel in family groups of between 6 and 20, which may coalesce with other family groups into large feeding flocks of over 40. Their gregarious nature, and harsh scolding/grating calls have led to a plethora of colloquial names. They can be known locally as ''lousy jacks'' (due to heavy louse infestations), ''happy jacks'', ''happy families'' and ''CWA birds''. The last name is mildly derogatory, referring to the supposed resemblance of apostlebird's constant chatter to a Country Women's Association meeting. ''Grey jumper'' is an alternate name.
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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