Have to argue with one point here Kev. I brought in a columbian patterned rooster to breed to Birchen Ameraucana hens years ago. All hens laying good blue eggs. Only 40% of the female progeny produced anything close to a blue or blue/green egg. So even starting out with blue egg hens is no guarantee. I'm currently on year 4 of selection cleaning this up for egg color and know I have a lot of work still.
Stabilizing the columbian pattern was far easier and predictable than egg color has been.
Stabilizing the columbian pattern was far easier and predictable than egg color has been.