I am really ticked off with a couple of my neighbors. We live in a very nice area and nice homes. But I have a problem with a couple of cats from my neighbors. We have a great bird watching area and my wife and I love all of them that come to feed. We have everything from Cardinals to Blue Jays and mocking birds and yellow finches. The back yard is flush with these birds. However I have seen my neighbors cats come in my yard several times and attack these birds, kill them and leave them lay on my driveway.They defecate everywhere as well. My neighbors on the other side have the same issue with these cats. I am just about ready to plug these cats next time I see them and take their bodies out in the sticks and dump them. Before I go postal on these cats is there anything I can lay down along my property line that will detract the cats from coming on my property? And for the record I have mentioned it to the cat owners and they don't seem that concerned. And just to be clear, I really hat cats. All of them. They could all shrivel up and die right now and I wouldn't miss them at all.