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The Botteri's sparrow (''Peucaea botterii'') is a medium-sized sparrow. This passerine bird is primarily found in Mexico, with a breeding range that extends into the southeastern tip of the U.S. state of Arizona, and a small non-migratory population in the Rio Grande Valley of southern Texas, which is threatened by loss of habitat. It was not found in Arizona between the 1890s and the mid-20th century due to excessive grazing of livestock; now it is locally common in its Arizona range due to recovery of vegetation. Juvenile birds apparently need dense vegetation to hide in during fledging; the uncommon native sacaton grass ''Sporobolus wrightii'' is preferred, but stands of introduced non-native Lehmann lovegrass (''Eragrostis lehmanniana'') and Boer lovegrass (''E. curvula'' var. ''conferta'') are also successfully utilized, though at lower population densities.〔Jones, Zach F. & Bock, Carl E. (2005): The Botteri's sparrow and exotic Arizona grasslands: an ecological trap or habitat regained? ''Condor'' 107(4): 731–741. (in English with Spanish abstract ) (HTML abstract)〕 The name of this species commemorates the ornithologist Matteo Botteri (1808–1877). ==References== 〔 * 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「Botteri's sparrow」の詳細全文を読む スポンサード リンク
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