I have 25 free range chickens that free range during the day and are locked up at night in their predator safe run and coop. We have 24 hens and 1 rooster! The rooster is very aggressive, so I have felt good about him being a good guardian. This evening when we went up to feed and water, I am missing one hen, and no feathers or body to be found. I also had someone steal my eggs 2 weeks ago. We have a 4 acre farm where the chickens reside, that is a 1/2 mile from our house. We also have 2 horses there, and have never had any trouble with the horses. I am thinking about a guard dog, Can anyone suggest a good guard dog breed that would be good with family members, horses and guard the chickens, and not hurt the chickens. The dog would reside at the farm. Thanks for any other suggestions, besides a dog,etc.