Date of Observation
Roost Details
Give specific details on the location e.g. is it in the attic, under roof tiles, inside the building, in a tree hole, underneath bark of a tree:

Guys hanging In the attic around chimney. Also seen several flying around house in evening/nights. Droppings in the attic. 

Where is the Roost
hus / stuga
How long has it been used by Bats
>10 Years
How do you know it's a Bat Roost
Seen Bat Droppings
Other (How do you know it's a Bat Roost)
Have also heard them without detector, seen them flying, and also seen them hanging in the attic during hibernation.
How many Bats use this Roost approximately
Do you know what Species use the Roost

No, hopefully you can help me😀

Do you have sound files of recorded Bats
How did you hear about BatMapper?: -radio -tv -newspaper -online news -social media - other (please give details)
From Naturhistoriska Riksmuseet, searching info on bat species.
Uncertain about monitoring, it's a summer house and we only go there during spring, summer autumn a couple of weeks every year.