June and july in our garden

Date of Observation
Sighting Details
What did you observe?
Can you give further details on the observation e.g. behavior, habitat etc:

We have a seminatural garden with lots of planted flowers, planted trees, grass (a to become meadow), perennials, trees and shrubs that remained from the former forest, many big boulders with holes below, next to a stripe of forest. There are usually many other species in the garden as well. The bats are here every evening, searching for food.

How many bats did you see?
2-10
How did you identify them
Visually Identified Bat