| Summary: | Abandoned stone quarries near Saharna village are located near the monastery 47041rsquo; n, 28057rsquo; E at an altitude ranging between 88 - 100 m and there are several entries located along the slopes. The entries arenrsquo;t protected in any way and the population has free access. A positive aspect for bats is that during the cold period the tourism and other recreational activities are less intense. The ceiling consists of multiple cracks left after extraction activities and has a height ranging from 1.5 to 5 m. The studies were performed in winterbeginning of the spring period 2013-2014. A total of 7 km of underground passages were investigated and 325 indivizuals from 9 species rhynolophus hipposideros, myotis blythi, m. daubentonii, m. dasycneme, m. mystacinus, plecotus auritus, p. austriacus, barbastella barbastellus, Eptesicus serotinus were registered. In 2013 we recorded only 112 indivduals from 7 species, while in 2014 ndash; 213 individuals from 9 species. This fact is probably due to the late period of study in 2013, which was at the end of March, when bats become active and leave the underground shelters, while in 2014 the bat monitoring occurred at the beginning of February. The plecotus genus individuals werenrsquo;t registered in the first year of study. The first individuals, belonging to E. serotinus, p. austriacus and p. auritusnbsp; were observed near the entrance, at 3-4 from it. During both years the dominant species was E. serotinus with about 70% in 2013 and only 40% in 2014, followed by m. daubentonii and r. hiiposideros in the first year and by r.hipposideros then m. daubentonii in the second year of study. In general, the ratio of species distribution is more even in February than in March, the quantitative difference between the dominant species being less pronounced. The rest of the species were registered in low number, between 0.5% and 7%. It must be mentioned the presence of b.barbastellus species with approximately 2% in each study period. I tis a very rare, endangered species ...
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