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lesser frigatebird
The lesser frigatebird (''Fregata ariel'') is a seabird of the frigatebird family Fregatidae. At around 75 cm (30 in) in length, it is the smallest species of frigatebird. It occurs over tropical and subtropical waters across the Indian and Pacific Oceans as well as off the Atlantic coast of Brazil.
The lesser frigatebird is a lightly built seabird with brownish-black plumage, long narrow wings and a deeply forked tail. The male has a striking red gular sac which it inflates to attract a mate. The female is slightly larger than the male and has a white breast and belly. Frigatebirds feed on fish taken in flight from the ocean's surface (often flying fish), and sometimes indulge in kleptoparasitism, harassing other birds to force them to regurgitate their food.
==Taxonomy==
The lesser frigatebird was first described as ''Atagen ariel'' by the English zoologist George Gray in 1845 from a specimen collected on Raine Island, Queensland, Australia. The lesser frigatebird is one of five closely related species belonging to the genus ''Fregata''. The other four are: the great frigatebird (''Fregata minor''), the Christmas frigatebird (''Frigata andrewsi''), the magnificent frigatebird (''Fregata magnificens'') and the Ascension frigatebird (''Fregata aquila''). The ''genus'' is the only member of the Fregatidae family.〔(【引用サイトリンク】 url=http://www.worldbirdnames.org/bow/pelicans/ )〕
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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