Originally Posted by Tryst
I would suspect yes, as your horse does not show any flaxen in it's mane. If the mane was at one point light like the tail and has gotten darker then it could be flaxen with sooty. Beautiful horse BTW!
Except that flaxen doesn't affect black horses (bays/browns included as they are only black modified with agouti). Silver is the black-flaxen gene, but I wouldn't pin either horse as silver either. I'd say gulastra plume, which is likely to be caused by a sabino gene.