Thanks. He does seem to have a pattern to him...sorta kinda birchen, sorta kinda duckwing. Honestly his color is a hot mess but his temperament and personality is something I want to breed on. I'm not looking to show or breed to sell, just my own personal enjoyment. I won't get off topic about him in this thread, but if I end up with a couple of his half sisters (their sex is still up in the air as they are chicks) I will definitely hit you up for advice.Yes it will work. The question is how long it will take.
I've bred it out and sometimes it can be done in a generation while other times it seems like you'll never get rid of it.
I'm doing it backwards right now and trying to breed for more of it.
Would help if you knew what the leakage is. I've seen black birds crossed with birchen or wild type where that pattern bleeds through. In that case you just need to breed that pattern out.
What I've mostly dealt with is black enhancers that end up missing. I did just like you described to get rid of leakage in those.