When you breed 2 hatchery NNs with bow ties; are they all naked necked the 2nd generation? Subseqent generations? My hens are buff, there are several other NN colors and when the hatcheries describe their NNs they say they are a mixed flock. Do they mean mixed for sending only?, or are the breeding flocks always mixed and I could get white or black chicks from my buff hens? Or if I got eggs from a one color flock the chicks would be just that color? Are the NN traits such as good egg layers fairly well set or are the NNs a somewhat new breed and anything could happen?