We recently adopted a nearly 4 year old pit bull. She is wonderful with our children, I have never encountered a better behaved dog with children and we love her very much. With our ducks, however, she is a nightmare. Her prey drive is pretty high, but we are working on it. She hasnt injured any yet but chases every chance she gets. She has learned that the cat, who lives in the house with us, is not for eating or chasing. This took several weeks for her to be left alone with Watermelon, but now they actually play together. I think Morgan can learn to not go after the ducks, and we are working on it, I do not think I will ever trust her enough to leave her alone with ducks. But I might be able to have her be in the yard with them while under supervision. We are looking into how to modify her behavior and are also working on "leave it". I so want a dog that can allowed free range over the pasture and be trusted, someday...