I know your F0 has a colored shoulder . he is nicely marked only a problem we are saying some thing is making this copper to go so diluted .
the single barred cockerel hasn t got the shoulder color at all . that worries me .
your F2 double barred cockerel has a colored shoulder like his grand father F0 and he tend to carry the same mutation or gene too .
I m finding your work subject very interesting .
chooks man
I was examining the single barred without the copper shoulders, he is starting to develop some:
I really think it is a matter of time with him.