that is true, it's alot of copper... I'm not very good at doing things in moderationthat much copper would only give you very mossy and over colored pullets and roos. that is too extreme for what Don was talking about.

with less copper than that then!! I have two of Blue's chicks (boys) and one has copper ears i was reading on the marans of america club page
about the balance of copper and comments made there suggest that if you mistakenly have the E allele it can cover up the copper,
http://maransofamericaclub.com/blackcoppergenetics.php