On our farm we have an abundance of animals, livestock and wildlife; one problem with this is the predators. We were having a real problem keeping the coyotes out of the goats, so we tried hunting, guardian dogs, and llamas. None of these fixed our problem, so we decided to get a donkey. Since the time we got our donkey we have not lost a single goat due to predation. Donkeys are very aggressive towards any kind of canine, whether it be coyotes, your dog, or your neighbors dogs. Donkeys are extremely hardy and smart animals with minimal upkeep. Some people say to use a jenny (female donkey) to guard your livestock as they have a mothering instinct, but our donkey is a gelding (castrated male) and he is working out perfectly. We also prefer the standard sized donkey (10-13 hands) to the miniature or mammoth sized for guardian purposes. I would recommend a donkey to anyone with predation problems with their herds.