Originally Posted by MacabreMikolaj
I do believe general consensus is that there is "no such thing" as dark bay - dark bay's are actually browns and were labelled dark bay before we labelled the gene for brown.
I could be wrong, someone correct me, but I can't remember the last time I saw a pic of a "dark bay" that wasn't actually brown.
She's definitely brown though. About as classic brown as it gets!
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I'm not 100% sure there's no such thing as a dark bay. I kind of think of it like this: agouti restricts the expression of black (in different ways depending on whether it's classic, seal, or wild bay) and reveals the "underlying" red. I don't see why that red couldn't vary in shade just as much as chestnut (from bright "sorrel" to liver chestnut)
This is, of course, just my theory, since I haven't seen a lot of horses that have been tested for At specifically to really confirm or deny. I wish I had a bunch of money to spend on testing; there are a bunch of horses at my barn that I'd love to see what their results are!