I know the pictures suck and the ones I have on this computer suck too, the better ones are on my laptop that crashed. The mares dam was a red dun solid, her sire is listed as a brown tovero. The sires dam is listed as a brown tobiano, sire is listed as a black solid. I don't know if that helps at all. I don't see any red in the colts coat, so I don't think chestnut or bay, brown possibly.
The pics are not very good, but based on the info I'm going to say grulla. I 'think' I remember seeing other,clearer pics of him younger and at the time thought he looked bay dun, but since that is not possible, he does look black based and dun, so grulla is most likely.
Oh, and he's not a bay....Bay's don't have any frosting, dorsal stripes, or zebra stripes and there's no such thing as a bay dun I'm pretty he's a coyote dun...he's darker than most but he's still coyote dun
Coyote dun is just a shade of dun. Its the dark sooty color, more then likely "brown dun" to be technically correct. But since theres no such thing as bay+dun, there wouldnt be a brown+dun either... Posted via Mobile Device