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Baird's shrew (''Sorex bairdi'') is a species of mammal in the family Soricidae. It is endemic to northwest Oregon.〔 Baird's shrew inhabits moist conifer forests. Its fur is darker brown in winter than in summer, when it is brownish-chestnut or olive brown, with paler sides and belly. Males and females are about the same size, which is common among shrews in general. Also like other shrew species, Baird's shrew feeds on insects, worms, snails, and spiders. It shares the forests of its range with six other species of shrew, such as the Pacific shrew. Body length ranges from 100 to 143 mm, with an average weight of 7.6 g, but ranging anywhere from 5.5 to 11.2 g.〔North American Mammals (n.d), (Baird's shrew ). from The Smithsonian Book of North American Mammals, by Don E. Wilson and Sue Ruff (Smithsonian Institution Press, 1999) and Mammals of North America, by Roland W. Kays and Don E. Wilson (Princeton University Press, 2002).〕 == Subspecies == Baird's shrew has two subspecies:〔()〕 *''Sorex bairdi bairdi'', (Merriam, 1895) Type locality: "Oregon, Clatsop County, Astoria" *''Sorex bairdi permiliensis'', (Jackson, 1918). Type locality: "Permilia Lake, W base Mt. Jefferson, Cascade Range, Marion Co., Oregon." 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「Baird's shrew」の詳細全文を読む スポンサード リンク
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