Add Yahoo as a preferred source to see more of our stories on Google. The main signs of a bat infestation are piles of rice grain-sized droppings and dark urine stains. Ammonia smells, scratching and ...

When it comes to identification, bat droppings are black and the size of rice grains. They look somewhat similar to those from a mouse, but unlike mouse waste, bat feces accumulates in big piles under ...