Oldfield Mice inhabit areas with loamy or sandy soils in the southeastern United States. Newly abandoned fields, where plants such as crabgrass are sprouting, provide good habitat. They are also found on grass-covered beach dunes and scrub areas nearby, where they are known as Beach Mice. They are not found on poorly-drained or hard-packed soil. They live in burrows, usually digging their own, but sometimes taking advantage of tunnels dug by moles.

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Mammal Species of the World