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bank vole
The bank vole (''Myodes glareolus''; formerly ''Clethrionomys glareolus'') is a small vole with red-brown fur and some grey patches, with a tail about half as long as its body. A rodent, it lives in woodland areas and is around in length. The bank vole is found in western Europe and northern Asia. It is native to Great Britain but not to Ireland, where it has been accidentally introduced, and has now colonised much of the south and southwest.
The bank vole lives in woodland, hedgerows and other dense vegetation such as bracken and bramble. Its underground chamber is lined with moss, feathers and vegetable fibre and contains a store of food. It can live for eighteen months to two years and is mostly herbivorous, eating buds, bark, seeds, leaves and fruits and occasionally insects and other small invertebrates. It readily climbs into scrub and low branches of trees. It breeds in shallow burrows, the female rearing about four litters of pups during the summer.
==Description==
The bank vole is a small rodent resembling a mouse but with a stouter body, a slightly rounder head with smaller ears and eyes and a shorter, hairy tail. The dorsal surface is reddish-brown, with a greyish undercoat and the flanks are grey with a reddish-brown sheen. The underparts are whitish-grey sometimes tinged with dull yellow. The ears are larger than those of most voles. The adult head and body length varies between and the tail ranges from . The weight is between . Young animals are darker in colour with greyer underparts. The bank vole is capable of making growling sounds and can utter low-pitched squeaks.
In areas such as Great Britain, where the only other small vole is the short-tailed vole (''Microtus agrestis''), the bank vole is distinguished by its more prominent ears, chestnut-brown fur and longer tail. The northern red-backed vole (''Myodes rutilus'') from northern Scandinavia and Russia, has a shorter tail and is paler with less grey in its pelage. The grey red-backed vole (''Myodes rufocanus'') from northern Eurasia, is larger with a distinctive reddish back.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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