Just one bat and wasps. They are really bad this year in my bat houses. The 3/4 inch crevice spacing has kept them from making a nest I think. This Big
Brown is in the lone 1 inch chamber next to the ventilation which includes the entrance, two slots across the bat house front, and a ventilated roof above the chamber. There is also a ventilation slot in the back. Slots are all around 3/4 inch guestimation but not measured. This is the first season on this box. No colonies have used it but several single bats so far. It is a cedar box on a metal pole.
Frank

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