Northern Birch Mouse

Sicista betulinaBirch mice are very similar to common mice in their long tails, short limbs and gray coats. They inhabit edges of deciduous and mixed forests with underbrush and grass cover. They are good climbers. Birch mice are nocturnal. They forage on grass seeds, berries, greens of plants, and invertebrates. Early in the fall, they hibernate and revive only in early May. As shelters, they use stumps and fallen tree trunks, though they dig holes when needed. Although these mice inhabit the entire area of the region, they are scarce everywhere.

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