northern birch mouse, sicista betulina, a rare nocturnal mammal on the park road.

northern birch mouse sicista betulina rare nocturnal mammal park road small rodent europe environment road text space copy selective focus sunny autumn day mouse-like rodents isolated subpopulation burrow natural crack skillful climber underparts pale greyish-yellow spine black stripe yellowish-grey long tail dipodidae vegetarian beige nocturnal betulina sicista eyes blurred background paws autumn little fall jumping mouse fluffy outdoor ears northern birch small nature brown portrait closeup mammal tiny rodent animal wild wildlife