Bay = A
Brown = At
Wild bay = A+ (I have never actually seen a wild bay, but I have seen a wild buckskin. I squee-d a little..)
The three are all extremely similar because they are very slight variations of the same gene, which is hard to explain to people when they're convinced their uber brown horse is bay (mostly because people don't seem to like having a lame brown horse.. Brown is classy, IMO. :P)
His dam would have At, which is testable through Animal Genetics (UC Davis has the A test and A+ does not currently have a test.)
Last edited by Poseidon; 10-03-2012 at 02:02 AM.