Originally Posted by BroodyBettysMom
I've started my own line of mottled orpingtons! By pure accident of course. Buff orpington mom and mottled java dad! I know I will now have to breed babies to father, but my chicks are adorable and look exactly like mottled orpington chicks should!
You're gonna have color issues, due to the genes introduce by your Buff hen. You'll most likely have red/gold leakage in the offspring.
And from the Java father, you'll have yellow skin. Yellow skin is recessive when bred to white skinned birds. You won't be able to tell which chicks are carriers, unless you selectively breed them to another yellow skinned bird (their father), which will result in a portion of their young having visible yellow skin. Cull the birds that produce offspring with yellow skin, they're your carriers. Orpingtons, as a breed, are white skinned birds.
So you've got a start, but it'll be a long project to get them to true Mottled Orps, at least genetically.