My puppy is about 6 months old now. She can't be left loose with the chickens unattended because she pulls the tail feathers of her favorite hen. When we're out to supervise they do fine. She herds them around the yard, but I don't know how to train her to put them where I want them. I wish she would keep them out of the house, but if the backdoor is open she herds them toward it. I made the door into their coop a dutch-door so they can hop in and out, but the puppy can't get in.