Justin Peck wrote:We have a Great Pyrenees and she does a wonderful job protecting our flock, though she does cost us about $90 a month in dog food. She get's the good stuff (4Health grain free). I agree with Bryant that it's more about the size of your enemy than the size of you farm. And most small dogs are more likely to go after your chickens. An alternative may be for you to get a guard goose. I know Joel Salatin keeps one with his chickens and they keep predators away. Just don't get more than one or they'll care about each other and not protect your chickens.
Even a LGD alone is not a match for more than one coyote at a time, but they will deter the coyotes from wanting to come around.