My 40 chickens are free-range, which is a bit risky, considering they roam the redwood forests, and are up-for-grabs for any predator. Occasionally a falcon drops by, but very seldomly. I find this very strange; if I were him, I would stop by every day for one of the forty little hens running around. I was thinking that perhaps it has something to do with the two enormous ravens that patrol the area. Are ravens territorial? would they chase away a falcon that enters their property? Also, it would be nice to have a guard dog to protect my biddies from coyotes and raccoons. Does anyone know of a breed that is an excellent guard, doesn't eat chickens, is nice with people, and could stay outside at all times?