This actually raises a question that i have wondered about for a while. At what point do you quit saying that your birds are from X breeder? How many generations down the line?
My silkies came from Ferguson. I tell people that my original stock are ferguson birds. When people then buy from me they aren't buying Ferguson birds, they are buying from me. Do they have the right to say they have ferguson stock? If i were Jack Ferguson I would be ****** if someone said that. He doesn't know how i breed and has no control over it. Thus despite my starting with his line they are no longer his line when they leave his farm and I start using them in my breeding program.
What do y'all think?
Say I got birds from you. I ould say that my birds are from you derived from Ferguson lines. Or something of that sort. I think it would take at least a few generations to make them your own line. But you are right, they are no longer his when they leave his farm just derived from.