With blue from BBS plus Chocolate, I think you get mauve, at least with an all orp cross. Not sure if that's all the time or occasional. Post some pics would love to see.My blue silkie+chocolate bantam Orp eggs have veining! I wonder though. She is BBS not Self Blue. I am not sure if that makes a difference as far as the caramel dun color the chicks should be? Anybody know?