they like fish ponds, fruit dropped from trees, garbage cans and good shelter.....look to see if you see a place where they are nesting.....they like a hole in a tree or old shed..up off the ground..don't like old rags soaked with ammonia in a plastic can. they are probably going right up your drain pipe or climbing up a tree and walking over a branch. They know that fall is coming and they are looking for a new place to live..........they don't like those new sonic Riddex that you plug in. They also don't like those sensor lights...I have a mix that you can make outside in a gallon container. 1` gallon of water, 2 small container of very hot sauce, 2 containers of ground pepper, 1 cup kitchen lidquid soap and mix & spray your perimeter............they travel by those nose.........