This report presents the results of Action A1.1 (Inventory of bat species and their colonies at the project sites) the project LIFE GRECABAT (LIFE17 NAT / GR / 000522). More specifically, the findings of the visits to the project sites are presented and discussed in the light of the management needs that led to the proposal of the project but also the pressures and threats identified after the start of its implementation. From November 2019 to April 2020, 62 visits were made to the 13 sites of the program.