War Chicken: On the same train of thought, you may value your chickens more than my dogs, but your value to ME is zero............
Some of the more reasonable responses seem to all agree that the OWNERS should be responsible. Start by going after the owners first and make them accountable. If people can't handle a dog, or any animal, then they shouldn't have them. it all comes down to not being a moron, not being lazy and having respect for the people that live around you, even if that means exercising some personal restraint with a gun, a club, your hollering, etc.
My chickens wander into my neighbors yard everyday. They poop all over the place and dig up the grass looking for food. So far, none of my chickens have been shot by my neighbors. The birds are just doing what they do, just like dogs.