Date of Observation Fri, 06/07/2019 - 17:23 Roost Details Specific Details on the Location -- Give specific details on the location e.g. is it in the attic, under roof tiles, inside the The bats live inside the walls of our summerhouse. They live there during the summer. They arrive around May and disappear somwhere around August. Where is the Roost House / Cabin How long has it been used by Bats >10 Years How do you know it's a Bat Roost Seen Bat Flying How many Bats use this Roost approximately >50 Do you know what Species use the Roost No How did you identify them Visually Identified Bat Do you have sound files of recorded Bats No Yes How did you hear about BatMapper?: -radio -tv -newspaper -online news -social media - other (please give details) They announced it on Swedens national radio channel.