I don't understand the term "brown." The points are still black. The mane/tail are still black. The body is brown. But it's still a bay, correct?
Case in point, here is my old Arabian gelding (in both summer and darker winter coats). I always thought of him as a dark bay. But I since I have joined this forum, I think he is "brown." But he's still a bay, right? Afterall, he has black points.
So anything that is any shade of brown with black points, I call a bay (unless it is something like buckskin of course). So is that correct? Or is "brown" totally something different? And if that is the case, how do you know you are looking at a brown vs. a dark shade of bay?
In other words, is "brown" simply a variation of bay? Or is "brown" NOT a variation of bay?
Brown and bay are genetically different. Brown is At, bay is A. However there are still varying shades of both due to other factors-- it can be hard to visually differentiate between the darkest A bays and the lightest At browns.
I have read somewhere that there is some evidence that a homozygous brown AtAt is usually LIGHTER than a heterozygous brown....?
I think I might have heard that too Eastowest. I just have no clue where I heard that.
On the Brown thing...
Trailhorserider - Your guy looks brown. See how inn his winter coat he has lightening in the stifle area? That is usually a good indication of brown as well as the lightening of the color around the nostrils.