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Bitterns are a classification of birds in the heron family, Ardeidae, a family of wading birds. Species named bitterns tend to be the shorter-necked, often more secretive members of this family. They were called ''hæferblæte'' in Old English; the word "bittern" came to English from Old French ''butor'', itself from Gallo-Roman ''butitaurus'', a compound of Latin ''būtiō'' and ''taurus''. Bitterns form a monophyletic subfamily in the heron family, the Botaurinae. Bitterns usually frequent reed beds and similar marshy areas, and feed on amphibians, reptiles, insects, and fish. Unlike the similar storks, ibises, and spoonbills, herons and bitterns fly with their necks retracted, not outstretched. The genus ''Ixobrychus'' contains mainly small species: *Little bittern, ''Ixobrychus minutus'' *Australian little bittern, ''Ixobrychus dubius'' *New Zealand little bittern, ''Ixobrychus novaezelandiae'' (extinct) *Cinnamon bittern, ''Ixobrychus cinnamomeus'' *Stripe-backed bittern, ''Ixobrychus involucris'' *Least bittern, ''Ixobrychus exilis '' *Yellow bittern, '' Ixobrychus sinensis'' *Schrenck's bittern, ''Ixobrychus eurhythmus '' *Dwarf bittern, ''Ixobrychus sturmii'' *Black bittern, ''Ixobrychus flavicollis'' The genus ''Botaurus'' is the larger bitterns: *American bittern, ''Botaurus lentiginosa''. *Eurasian bittern or great bittern, ''Botaurus stellaris'' *South American bittern, ''Botaurus pinnatus'' *Australasian bittern, ''Botaurus poiciloptilus'' *''Botaurus hibbardi'' (fossil) The genus ''Zebrilus'' includes only one species: *Zigzag heron (or properly Zigzag bittern), ''Zebrilus undulatus'' ==Notes== 〔 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「bittern」の詳細全文を読む スポンサード リンク
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