Someone asked me about Brown-red. I presume that they are wanting to work on them with modern game. I have figured out that they are ER/ER s+/s+ Ap/Ap, and Di/Di may be present. Now help me through this. The ER is birchen, dominate on both genes. s+ is sex-linked silver, recessive so that the females only have one gene? Ap is Autosomal Pheomelanin (autosomal red). Now how do you tie all this together?