Signs of Pigeon Infestation
Well, there's a bunch of pigeons that hang around your building pretty much all the time, then there you have it. Another sure sign is that the area is covered in their droppings. This usually indicates that they nest somewhere nearby. Also, keep your ears open for cooing and take a closer look at the building, you might notice their nests on ledges. Pigeons are a common urban nuisance. They are noisy and make a huge mess wherever they go.