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'' Procelsterna '' is a genus of birds in the tern family. It consists of two species, which are sometimes considered to be conspecific. * Blue noddy, ''Procelsterna cerulea'' * Grey noddy, ''Procelsterna albivitta'' The grey noddy is sometimes considered to be a morph of the blue noddy. These are grey-plumaged terns of tropical oceans, which nest colonially. They feed on small fish picked from the surface. ==References== * Peter Harrison, '' Seabirds, an Identification Guide'' (1983) ISBN 0-7470-1410-8 *Olsen and Larsson, ''Terns of Europe and North America'' ISBN 0-7136-4056-1 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Procelsterna」の詳細全文を読む スポンサード リンク
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