I'm confused why you would want to do that? Are you wanting more red silkies or more Black silkies? If you are wanting more red silkies, I would breed back to a bird that is deep Buff. I think I go about doing things differently than a lot of people new to chicken colors do. If I have a color in mind, I don't look to see what colors I have in my flock and cross my fingers and go for it. I first research and decide what color I'm aiming for, then decide on a plan of how to go about it, I'll probably talk to a few people who are currently working with that color and see what has worked for them and try not to make their mistakes, and then finally, will locate a bird or two that has the desired genetics behind it to create the color I'm after. I'm really more of a straight-forward let's keep things clean kind of breeder. I breed with a purpose and plan. Always. Chicken genetics aren't like oil paints-- you can't just take two colors and hope they will "blend". Anyway, the deep red color is something that a few people have worked with in the past. It is not a Standard or accepted color, however, if you are wanting to acheive that color, Bobbi Porto in Florida has already created it on accident several years ago. She has since then sold offpsring and others have been able to get a few deep red colors as well. I do believe it all started with a dark Buff with a lot of smutt. It might be wise to email her and ask her what the genetics are behind her reds and how to acheive it on your own. I don't know how well the color is being kept going, since I'm not certain it is breeding true. That makes it a lot harder to maintain in going forward with your generations; just be very selective and cull with purpose always keeping in mind what your goal is.
