I was told on another color forum that Rosie was a "wild bay". I never did find out what that was, or why she was called that. Something about the way the dark points on her legs extend upwards, I think.
Also, she has these odd white hairs that appear every spring when she sheds out. The white hairs are all gone by July.
I can see if I have better pictures, if you need them.
I would have called her a bay dun, especially if she has a dorsal stripe (can't quite see if she does). She's not a wild bay, because that is a very pale brown coat with blakc markings only as high as the fetlock or pastern. Hers go much higher.
She isn't a wild bay - as mentioned above, she has too much black on her legs. Whoever told you that have their wires crossed, but I can see what they are basing that on - there is bay on her legs below her knees in places, but she is still just a "plain" bay. This horse is wild bay:
Also, your horse isn't dun as the PP suggested. She has no dun factor at all, and if she has a dorsal, it will be counter-shading.
Yeah, I see what you mean, no dorsal stripe and quarter stripes, I would've guessed from the angle of the first pic... one of the reasons I suggest is cos we have two duns with those white spot markings on their shoulders and stifle areas, and I thought it might be another dun thing... but maybe not. They tend to get them in the winter and lose them in the summer, never really figured out why though.