Here is the wall of my neighbors house. All those little brown specks are bat droppings. There is a colony of many hundreds of bats here. They come out of these openings on the edge of the roof and also right thru the shingles on the roof.


Then owner of the house seems to have little understanding of the number of bats and what he must do- all he has done is hire a carpenter to put this ONE PIECE of tin over ONE HOLE on the edge of the roof.