Originally Posted by Peppy Barrel Racing
I have seen plenty of dark grullas and you can still tell they are grulla. He's sun faded black your making something simple special and complicated. If OP posts a pic of his dorsal perhaps it will be more obvious to you. I posted a light grulla to show dun factor. Even on dark grullas you can still see dun factor. He's sun faded black that's all there is to it. Also neither parent is dun and that is a MUST because dun is a simple dominant.
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I definitely agree on better pictures to be sure. I, however, can see plenty of dun factor in the last picture to warrant grulla.
I am also very aware that in order to have a dun, one parent must be as well
That is why I said " his dam must have been dunskin (buckskin+dun) if my theory of his being a very dark grulla is correct. Even if she didn't appear obviously dunskin, it is still very possible that she could have been. It's quite often that dunskins don't have prominent dun factor."
I have my opinion and you have yours. I can totally see where you're coming from, but I have my reasons for believing that he is a dark grulla rather than a smokey black/ sunfaded black.
I am not 100% sure with my theory, but better pictures will hopefully enable us all to decide for sure