I just bought a horse a few weeks ago. We just brought him home today. He's small, about 14.2. I was wondering how you would tell if he were part mustang? He sure looks like a few I've seen on the internet and in real life. He's short and stocky, long, long tail. Very, very hairy feet, haha. He's a beautiful boy. He's not papered so it really doesn't matter what he is, but I would like to know what he would be.