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The eastern bluebonnet (''Northiella haematogaster'') is an Australian parrot, one of two species in the genus ''Northiella''.〔,Sindel, S. and Gill, J. (1996). ''Australian Grass Parrakeets: The Psephotus and Northiella Genera''. Surrey Beatty & Sons Pty Limited, Chipping Norton.〕 It was originally included in the genus ''Psephotus'' but due to distinctive physical and behavioural differences was reclassified into its own genus in 1994 by ornithologists and taxonomists Christidis and Boles.〔 The bluebonnet is a medium sized inland parrot commonly found in the interior of southeastern and central-southern Australia. It is adapted to life in semi-arid regions but can also flourish in regions of medium rainfall towards the eastern and southern extremities of its range.〔, Forshaw, J. M. (2011). ''Parrots of the World''. CSIRO Publishing, Collingwood.〕 ==Taxonomy== Once included in the genus ''Psephotus'' the eastern bluebonnet has been placed in its own genus due to its significant physical and behavioural differences form other members of the ''Psephotus'' genus.〔 Throughout its range three distinctive subspecies are recognized:〔〔, McNaughton, M. (2002). ''Australian Parrots and Finches''. Cameron House, Wingfield.〕〔 #''Northiella haematogaster haematorrhous'' – commonly known as the red-vented bluebonnet is found in the northeast of the species range. #''Northiella haematogaster haematogaster'' – commonly known as the yellow-vented bluebonnet is found in the central north of the species range between ''N. h. haematorrhous'' and ''N. h. pallescens''. #''Northiella haematogaster pallescens'' – commonly known as the pallid bluebonnet is found in the extreme northwest of the species range. A fourth has been once again classified as a spearate species, the Naretha bluebonnet. Where each subspecies overlaps there is a substantial amount of integration between the subspecies. 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「Eastern bluebonnet」の詳細全文を読む スポンサード リンク
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