I have a Pit Bull Terrier who is wonderful with my chickens. I will post pictures when I get home He is great, and has been attacked numerous times by my territorial Barred Rock hen. She has full on attacked his head, recently over some hamburger lol, and he just moved away. I taught him Don't Touch command as a YOUNG pup and used that with the chickens He is a great dog. I also had a female pitty who was wonderful with chickens also. They are very much prey driven though, my dog will run past a chicken and grab a squirrel out of the tree. But if trained right, they can be wonderful!!!!! He protects my girls as well from stray cats, hawks, ect. But I never leave him outside unsupervised with the girls, because he chases squirrels and he would accidentally plow over a chicken to get to the squirrel. But I love him!!