Herd Issues that affect riding.
I have a gelding that I got two years ago, and we have only had him in with mares ever since. Well, we just got a new gelding, and I thought they had the pecking order figured out because its been about 2 months since we got the new gelding. I took my gelding out today bareback, and he's usually really good, but lately he has been really gravitating toward the pasture and threw me some really high rears because he did not get his way. This is getting dangerous and I don't know what to do about it. The weird part is that he and the other gelding don't fight! But he's never been this way toward the mares before. What can I do to fix this? I don't think I am able to separate the two geldings right now.