Have a bird problem. Last year I had a stone front put on my house and had shutters installed by the windows. Now the shutters stand off some because or the irregular stones. This is normal. This spring I had a bird family build a nest behind the shutter. I was able to get to it the first time before he finished building the nest. The very next day he is back at it building a new one. Is there something I can do to scare them away for good??? How many times will they keep trying. Do not ask me what kind of bird. Have no idea but would think a sparrow. They usually build nests in the bushes in front of the house but this guy decided up close to the eave and on top and behind my shutter is a better place. Wakes me up every morning slamming into the window. Help.