Abstract Objectives This is the first study of the sonic and ultrasonic vocalization in a Dipodidae rodent. For the small-sized quadrupedal northern birch mouse Sicista betulina. phylogenetically related to the bipedal jerboas (Dipodidae). we report null results for ultrasonic vocalization and investigate the acoustic cues to individual identity. https://www.megavitamines.shop/product-category/vitamin-b6/