I have a young Jack donkey that will be 2 in July. He wont be a real big when grown, probably about 48-50 inches. He will already run off a dog and his mother will kill coyotes. He should do the same. He has been ran with cattle but has been up with our horses for a few months. We had plans to make him a cart donkey but plans have changed due to lack of time. He is still a stud, the last time I checked they hadn't dropped. He sells as a loose as he isn't completely halter broke. As you might imagine with a young stud donkey he is fairly onry but likes people and attention. Serious inquiries only , no tire kickers.