The answer to 'why is my rat droppings' is that you likely have a rat infestation in your home. Rat droppings are a clear sign that rats are present and living in your house or on your property. Rats leave behind small, dark brown or black droppings that are about the size of a grain of rice.
Rats enter homes in search of food, water, and shelter. Common causes of a rat problem include open access points like gaps around pipes or cracks in the foundation, accessible food sources like pet food or crumbs, and clutter or storage areas that provide nesting spots. Seeing droppings is one of the first signs that you have a rat issue that needs to be addressed.