I see that many of you have run out of options in protecting your flock. If you live in the woods like me and have trouble with everything from bobcats, to owls, to even raccoons you may want to look into getting a border collie. I have trained my border collie, her name is Eva, to guard the chicken coop pretty much 24/7. It has worked out very well so far and absolutely nothing gets by her. It does take alot of patience, a bit of knowledge, precise timing and trust to train a dog to do this. As a forewarning, many dogs are not suited to guarding small animals, you may not want to try it with a terrier, hound dog or any kind of hunting dog. She has caught around 3-4 opposums so far in her guarding efforts and Im sure ran off many raccoons and coyotes. Also for you softies, this is a very humane way to catch predators because she either runs them off or in the opposums case causes them to play dead. She even protects my feed storage from pests by going in at regular intervals. Of course border collies are a herding dog and if they are too young they may try to herd the flock but this is easily broken if it is adressed early in your training. If you have any questions regarding training or anything feel free to ask, and I will do my best to answer. PS: Do not get a border collie if you live in the city with a small yard. You will more than likely be sorry. Eva on patrol.