India Blues do have a few black feathers on there wings but they will not get more. But like I said my Purple male is split blackshoulder because I bred him that way and know who his parents are, If you know what to look for you can tell if they are split blackshoulder or not my male has a lot more brown on the wings then the barred wing does. But it looks like us breeders with 10 plus years in peafowl need to find another forum that don't have as many experts so we can try and help people that needs it. I am by no means an expert and if there is something I don't know I don't answer