Thanks to all who posted, I will keep you guys updated. And I waited for him one night with the intentions of driving him off, but he came in and was gone so fast. The cage is under a light that turns on when it gets dark, and the sucker flies out of the darkness and all you see is him spreading his wings out and hiting the cage, sometimes he gets lucky sometimes not, but it happens so fast, I wouldn't want to shoot a bird of prey do to the the laws and it's not worth it, even though I think it's stupid I'm doing everything possible and cant even protect my livestock. But anyway I don't think I could even shoot him if i wanted too. he comes in out of the darkness, and is gone back into the darkness just as fast.