We have Louisiana Kites that yearly migrate thru our area. I don't shoot them but there is nothing better to scare them away when we first see them than a few shotgun blasts well away from the coops and runs. We live in the country and can legally shoot a gun on our property. Also, the neighbors know what I'm doing, after the first time they asked.
Our neighbor has hunting bird dogs he lets run down our back road for excersize. The first time they crossed over our property line and started trying to get thru the wire I took pictures, then calmly walked across the street with my shotgun, showed him the pics and informed him that if I lost any of my flock his dogs would never hunt again. We have come to an agreement. They watch the dogs and call me when they let them roam.