When you let your chickens free range, you are basically opening up a restaurant for the local wildlife. You can't blame the predators- there is no sign that says "These are mine - you can look but not touch." They're hungry and just trying to survive and don't distinguish my birds from all the other prey in their territory. I'm probably in the minority but I've always felt it is my job to provide as predator proof an environment as I can rather than kill any predator that visits my property and helps itself to the chickens I've made available. If I do let my girls free range, my dog and I are out among the flock to help discourage predation, my run is covered so that an aerial assault by day is not possible, and I make sure my chickens are safely secured in a predator-proof coop each evening before the wildlife comes out. I've unfortunately found that free ranging neighborhood dogs pose as much danger to my girls as all the hawks, owls, eagles, foxes, raccoons, bobcats, and bears that share my world.