Please help! What ARE these mounds of dirt inside my home?
We recently decided to rearrange and get rid of some furniture in our family room. This room was a two-car garage that was converted to a family room by the previous owners. In moving some of the furniture we came across 2 piles of dirt (12 inches long x 5 inches wide, 3 inches deep). About 5 feet further down this inside wall (towards the outside wall) is another pile about the same size, about an inch or so deeper that seems to be made up of dirt and various debris like wood shavings (don't know from where they came from) and small cardboard or cardboard-like tiny pieces. Does anyone know what this is from? A mouse? Ants? Termites? I haven't found any bugs in these piles so I am thinking mice but...