What does mice poop look like?

According to the National Pest Management Association, a mouse produces between 40 to 100 droppings per day, while a rat produces between 20 to 50 droppings.  Mice droppings are typically small, about ¼-inch in length. Mouse droppings are best described as small, pellet-shaped and dark brown in color with pointed ends.  Newer droppings will be darker and shinier while older droppings will look chalky and dry.