To tell the truth I havent noticed any in a long while. My house is so small they can be there and gone before yoiu know it. Birdshot doesnt work too well as it doesnt penetrate much more than a birds aft secrion. shotgun doesnt have the range and rifle endangers pilot and crew and they might shoot back. Those chem trails leave trees gasping for air and make the air above your house look trashy. I have been renting out Buzzards to friends and nieghbors to carry no tresspassing signs. Nothing like a vulture to get a pilots attention . the rent is cheap and they work long hours just floating along on air currents. Buzzard Bombs Inc.may be reached at BR-549. This ad iis not endorsed byNPP.