EN
During the research concerning the present and postglacial bat fauna of the Polish Tatra Mts, the authors noted some high situated localities of Eptesicus nilssonii. This extends the vertical spectrum of its species occurrence in the Tatras and Central Europe. In winter, the bat reaches alt. 1906 m (the Wielka Litworowa Cave). In summer it was observed at an altitude of up to 2065 m (The Mułowa Pass). The subfossil remains of the northern bat were found at height 1851 m a.s.l. in the Jasny Awen Cave. The Czarna Cave, with 28 individuals, is the most important winter locality of this bat in Poland and the Carpathians.