Multiple bats hunting at dusk throughout summer

Date of Observation
Sighting Details
Do you know what species you observed?

No

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

Hunting at dusk around the house throughout the summer. We live at the edge of a forest, mostly mature spruce and scots pine, but some broadleaf mixed in. 

Last year we observed the same behaviour.

Found a dead bat on the gravel path right under the eaves of the house. Suggests they may be roosting in the roof somewhere, but we haven't heard them. 

Last year a single bat found its way into our guest house at the commencement of winter. We (very gently) moved it to a space underneath the guest house floor (which is heated during the winter months).

In summary, there appears to be ongoing activity hereabouts. 

Do not know which species they are, but they are very small (length of my little finger). 

How many bats did you see?
2-10
How did you identify them
Visually Identified Bat
How did you hear about BatMapper?: -radio -tv -newspaper -online news -social media - other (please give details)
NG-group email at SU