Cute doggies! We already have about 0.5 acres of our property fenced with a 4-ft high metal and wooden fence that is about 25 yards from the coop/run, but he's been able to climb over it to chase rabbits or to stay right next to me. He doesn't know any commands/training, so it's hard to control him if he escapes or pulls the leash out of my hand. He's a good dog if it's just me and him (or if he's at least with someone), but as soon as you leave for ~10 seconds, he goes into panic mode. I'm sure this is because he went from an abusive home, to a concrete dog pound, to 2 humans who are actually nice/loving/good people.
I don't know what would be worse, keeping him and hopefully training him to be a better dog with no guarantees (and keeping the chickens in their pen or with limited free range time for the remainder of their lives) or to take him back to the dog pound where he'll staying in a concrete kennel for who knows how long. I'm feeling so guilty with everything.