field mouse

definition: any nocturnal Old World mouse of the genus Apodemus inhabiting woods and fields and gardens
example:
speech part: noun
synonyms: fieldmouse
definition: any of various small mouselike rodents of the family Cricetidae (especially of genus Microtus) having a stout short-tailed body and inconspicuous ears and inhabiting fields or meadows
example:
speech part: noun
synonyms: vole

How field mouse is being used?