You ALWAYS need new blood to reproduce the Charcoal! ALWAYS need a blue peahen split Charcoal. There is not another mutation like that!Charcoal peafowl have some bad traits such as blindness, sterile in the hens, shorten life span. The black plumage trait is the plus. I'm performing genetic research to learn if all these traits are on the same gene or not. If they're on the same gene then there's no hope for the Charcoal. If they are separate genes there's the possibility of outbreeding these problems. We can possibly out breed the bad genes by changing their environment. Nutrient supplements, hormonal therapy, getting new blood into them.