Not sure if I picked the right forum, if I didn't I'm very sorry. So we just got a new puppy rottweiler, he's now 12 weeks old. We are very consistant on teaching the puppy that my hen is to be left alone. I do catch our puppy chasing my hen and I stop him and tell him "NO", I'm just worried when he gets bigger (and he will get bigger) that he still might want to chase my hen, and what if he catches her and I wont be able to stop him, or what if we are not home and nobody is here to stop him. We are training him to leave hen alone but what if his preditor instinct comes out? So my question is should I fence a section of our backyard that's just for my hen or should I trust that our puppy will grow up knowing the hen is off limits?