Abstract:
Some contemporary mammals and their remains from owls’ pellets were collected occasionally during the Polish palaeontological expeditions to the Gobi Desert in the years 1963-1965. The author offers the results of the study of this material, which provides some new data concerning the distribution of contemporary mammals in the Mongolian People’s Republic. Some species of jerboas regarded very rare, e. g., Cardiocranius paradoxus and Salpingotus kozlovi, have turned out to be fairy numerously represented in the diet of owls.