|
Cassin's sparrow ''(Peucaea cassinii)'' is a medium-sized sparrow. This passerine bird's range is from western Nebraska to central Mexico. ==Taxonomy== The first Cassin's sparrow was described in 1852 by Samuel W. Woodhouse from a specimen collected near San Antonio, Texas, and given its species name in honor of John Cassin, a Philadelphia ornithologist. The species was originally known as ''Zonotrichia cassinii''. It was subsequently and variously assigned to the genus ''Peucaea'' and eventually to ''Aimophila'' around the turn of the century. Much of the confusion seems to have stemmed from a serious lack of knowledge about the anatomy and life history of the species included in the genus. There have been several substantial treatments of the taxonomy of species within the ''Aimophila'' genus〔, 〕 and a comparison of the song patterns of ''Aimophila'' sparrows, but they have focused primarily on evaluating the evolutionary development of these species in order to determine whether this genus actually consists of an unnatural assemblage of species (actually representing several taxonomic groups or divergent forms). None of these publications called into question the placement of Cassin's sparrow within this genus in what is called the "botterii complex" – Botteri's sparrow (''Aimophila botterii''), Bachman's sparrow (''A. aestivalis''), and Cassin's sparrow (''A. cassinii''). In 2010, the American Ornithologists' Union resurrected the genus ''Peucaea'' on the basis of genetic, morphological, and vocal data, moving Cassin's sparrow back to ''Peucaea cassinii''. No subspecies or races of Cassin's sparrow are recognized.〔; ; ; 〕 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「Cassin's sparrow」の詳細全文を読む スポンサード リンク
|