My black horse recently had his coggins redone, and they listed him as a bay. LOL. Sure it would be nice if he stayed coal, but I'm not not letting him out and he's still handsome whether he's bay, or black, or any other color for that matter. He's healthy and happy, and I don't participate in any kind of shows... just endurance where it doesn't matter. That being said I've bought quite a bunch of paprika to supplement once he gets his dark winter coat in, whether it will help keep him that way we will see!