I have a pen of babies that should lay colored eggs coming up now.......EEs, Marans, Olive Eggers.......and of course have ample roosters of each breed, along with some wyandotte, cochin, swedish flowers, new hamshire, and buff orpingtons. I want to keep one or two roos for fertilization (yes, barnyard mixes) and protection. My question is.......would the rooster have any contribution to the potential egg color of the offspring? Say, for instance, I keep a Cochin roo and he covers an olive egger hen. Would the resulting offspring (assuming it is also a hen) lay colored eggs even if it is half colored egg layer? Would the color be diluted? What if I kept a Marans roo? If he covered an EE or an olive egger, what potential colors would the offpsring of that cross throw? Or does it even make a difference? What the roo is?