The Buckeyes are a pure breed, similar to Rhode Island reds and similar in colour. The Cornish are pure dark Cornish, double laced, black and brown, and they breed true too. The other hens are a mystery mix, I don't know their background at all so their colours won't breed true.
I just got back into chickens last year after a long absence. I spent a year researching the breeds, and decided on Buckeyes as my primary breed of choice. I also have some dark cornish, and some mixed layers. I have a few projects in mind, but because my birds are so young it will take me a...