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The ground rollers are a small family of non-migratory near-passerine birds restricted to Madagascar. They are related to the kingfishers, bee-eaters and rollers. They most resemble the latter group, and are sometimes considered a sub-family of the true rollers. ==Description== Ground rollers share the generally crow-like size and build of the true rollers, ranging from 25-49 centimetres in length, and also hunt reptiles and large insects. They are more terrestrial than the Coracidae species, and this is reflected in their longer legs and shorter, more rounded wings. They lack the highly colourful appearance of the true rollers, and are duller in appearance, with striped or flecked plumage. They are much more elusive and shy than their relatives, and are normally difficult to find in the Malagasy forests.〔 Often the hooting breeding call is all that betrays their presence. These birds nest as solitary pairs in holes in the ground which they excavate themselves, unlike the true rollers, which rarely nest in ground holes and even then do not dig their own nests.〔 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「Ground roller」の詳細全文を読む スポンサード リンク
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