Do you have bird-feeders in your yard to attract beautiful songbirds? Many do, but however, birds could become a problem if they are attracted to your home in too large numbers. Bird droppings is not only unsightly, but it will also do damage to your walkways and driveways. This is because their droppings contain uric acid, a corrosive compound.
They could damage your home by building nests in inconvenient places, such as gutters, which could cause them to overflow, or vent exhausts, causing your kitchen and bathroom fans to not work properly.
There is also the possibility that the birds carry disease, and could damage the health of you and your family.
If you do have a problem with pest birds, you should first make sure that you remove any food that they can access easily, and if necessary, put up sturdy netting to keep them away from places they like to roost.