DH called the sheriff and animal control. They said nothing criminal happened, no witnesses (except me), but that if we feel threatened, we can go to magistrate's court and swear out a warrant for him. If the dog comes back, take pictures, call animal control and they'll remove him from the property. So, when his dad gets home in the morning, his dad will be told that we feel threatened by his son and that we are within our rights to swear out a warrant for his arrest. We'll go from there. The problem is that this kid often gets drunk with his delinquent friends and I wouldn't put it past him to organize a killing party and come up here to kill the birds. Good thing we have baby monitors in each coop, except for the Firetower where Nora and her chicks are.