Pup catching on the butt.

I'd be happy with the situation you are describing....I'd let her do what she is going to do. Being a young dog, she will find what she likes and she will learn from her mistakes (as most dogs do). If she lives through her mistakes, she will make adjustments. Some behaviors are correctible, this is a behavior I would let play out and just see what happens. As far as getting hurt with a bigger hog, that may happen, may not. My personal opinion, is I would not put her in the pen anymore, it sounds like she is ready for a decent size hog in the woods. She may be getting comfortable with the hog in the pen, when she notices the fact that she is in front of a new hog (unfamiliar hog), she may go back to baying. Good luck and you will here a lot of opinions from the "old guys" and the "newbies". I'd tell you to go with your gut feeling. I cant tell you how many times I've asked for opinions only to stay with my own gut feelimg and turns out my gut feeling is usually right or prettyl close to it.