I seperated her because her attention was not on me, I put her back today, she is better now, and not rearing biting or kicking. She is not herd bound, at least when I am there, but when I work with her, it is in with the other horses, and they start running around, then she wants to run around with them. That is the only reason I seperated her, so her attention would be on me at all times. She seemed to have learned her lesson... for now.
Just to clarify, you want her to not rear, kick or bite at the other horses or at you? If it is the behavior to the other horses while in the pasture, I doubt you ever will unless you are there all the time or always have her isolated. If its towards you, yes, it needs to be corrected.
I do think you are going about it wrong, if it's towards you. Don't isolate her and then work her around the loose horses. First, working her in with the other horses is a recipe for an accident. It will also be more difficult for her to keep her attention on you. Young horses have a short attention span in the first place. Work her away from the other horses so it is easier for her to keep her attention on you. As she gets better, you can work her near the others but don't work her in with them.
Trying to eliminate the behavior when she is out with the others is next to impossible. It's the way they communicate and a part of establishing herd dynamics. It's also the way they play. You can isolate her but anytime you would introduce her to other horses in a pasture, the other horses will do that behavior to her to show her that they are above her in the pecking order. She will return the behaviors to challenge for their positions. That's just horses being horses.
Personally, I would work her away from the other horses and then tie her away from them for a while, like an hour to digest what you worked on. Afterwards, turn her out with the others for her to be herself. If she displays bad behavior when you work her, correct her and she will learn that it is not acceptable when she is with you but she can behave like a horse with the others. Posted via Mobile Device