The people on the NN thread love to cross breed their NN to see what new varieties we can come up with. There are a few characters on that thread that know a great deal about genetics and using the NN is fun because it is a dominate gene i.e. if you do not see it that gene has not been passed on. Another thing to remember is that genes come in pairs and in order to be consider pure for a particular gene both parents need to carry two copies of each. hat is the only way a bird will breed true. That is the offsprings will look like the parents look.Thank you. I have honestly never read the NN thread because mine are a cross with Ameraucana. I know that mine are my favorite birds that I own. They are so friendly and fun. I do not know it that is normal for everyone or just the cross I have.
Anyway I love NNs and hope to some day have every chicken in my flock be a mix of NN.