. . "The northern birch mouse (Sicista betulina) is a small rodent about 5 to 8 cm long (without the tail), weighing 5 to 13 g. It lives in northern Europe and Asia in forest and marsh zones.It hibernates in underground burrows. It eats shoots, grains, berries, and sometimes insects."@en . . . . . . "LC" . "Northern birch mouse"@en . "IUCN3.1" . . .