Inside  

Out to get a breath of air

I heard buzzing within the siding.

Was it bees or wasps grinding to stay in

or to get out, and above, a tiny tap

of toes walking across the eaves, but then

a ping, like radar, or is it sonar that bats use?

Hidden from view in the wood and aluminum

a hive of bugs provides snacks for a pair of bats.

Little Brown Bats photo from Animal Diversity Web

Mud Dauber photo from Pest Control Canada website