Thanks a lot nev for answering , i 'll try to give you more picture , beacause i ve some trouble with the 5 cock and 12D hen and their sons: 512D1, 512D2 and 512D3
5 is a grey male with no dark factor
12D is a lutino (i'm sure of that) but she's split of many factor i think (I would like to know if she's split of blue Type 1 or type2?) if she gives me blue cobalt ? she's type 2? am I wrong?
512D1 is a normal blue you said , he doesn't have a grey factor?because his tail is black instead of 512D2 wich have a blue one.
512D2 is a normal blue or cobalt? beacause is body looks just more blue than 512D1 but his back (between his wings) shows a superb blue cobalt ?
I have post bad links and pictures, we don't see very well, if you want to show the picture take the url by copy/past , by ex : https://www.zimagez.com/zimage/genetiquep.php
You ll have a better view.
I will study your proposition to understand ... Thanks