Forum:Found an..unusual...horse in RDR Original (No DLC's) - need help identifying please.

are animals found in Red Dead Redemption.

Characteristics
Look, before anyone starts, no this is not a troll thread. Now - is everyone familiar with the mission where you save jack from the bear up on Nekoti Point? Well I had just finished rescuing him and was heading back towards Beechers Hope when I saw a plain white horse. Now normally I'd be like, oh well it's just a hungarian half-bred - a.k.a white stallion - but what caught my eye the most is that there was mist hovering around the base of it's hooves that would trail around where ever it walked. I promptly broke it, and shot my other horse - for whatever reason jack wanted to stay on that horse instead of joining me *rolls eyes* - and now after looking over this wiki quite a lot I just cannot figure out what I've got. I have no DLC's - I'm actually renting the game, would suggest buying to anyone who reads this and doesn't have it already - and I haven't been connected to Xbox Live since renting the game. If anyone can let me know wtf I found I'd sincerely appreciate it! (and in case anyone didn't catch it in the last sentence - it's not a modded version for the PC. I haz an Xbox.)