12 guage would solve that problem. And you could plead self defense on yoyr way to jail.
(just kidding) I had a Red Tail Hawk start to build its' nest in the top of a crane boom on a job I was doing. It had started the nest over the weekend. We dropped the boom and got the sticks and grass out before any of the local tree huggers noticed it. It wouldn't have been very cost effective to leave the crane boom undisturbed the whole length shoot of nesting time for the babys.