Just a question. Do bay duns have to have all black legs, all black manes and tails, and only a black dorsal stripe? Because we have one that's supposedly bay dun.... But he has some red/lighter colouring near the base of his neck/tail, and his legs below the knees aren't all black... Even the zebra stripes on his hind legs are red. And his dorsal stripe isn't black, it's red
That actually looks like a dunskin, though it sounds like the horse is red based if all the primitive markings are red rather than black. Maybe a red dun with sooty? Now you've got me interested, would love to see the horse in question lol. Posted via Mobile Device
If he is like that first horse you posted then he is a bay dun, the lighter hairs your are seeing I'm betting are his guard hairs. They are white on my dunskin but you can see they are in the same spot on his mane and tail. But on a bay dun they often have that light orangey color to them. Also all the dunskins I've see pictures of are light and creamy like JP.