I don't know if anyone has seen this before, but lately I've noticed two horses with weird coloring. One was a thoroughbred stallion, bright red chestnut. He had a couple spots on him that had the appearance of being "bleached", like when you spill a few drops on a red shirt? They never went away. He died tragically of twisted gut but sired one last colt, a beautiful bright red chestnut thoroughbred like himself. He also has the bleached spots and a dark spot, right above his white star that is nearly black(although I actually think its a very dark liver chestnut). Both these horses are registered, DNA tested, etc. I'll try to get updated pictures for you. Any one heard of anything like this?