But if you breed with sex linked varieties then you can sex the young already in the nest. This is if you use a cock of a sex linked variety and a normal hen. Read more about this on sex linked varieties. Here I will try to show you what to expect. The following matings are among normals with no other variety involved as opaline, cinnamon, grey, pied a.s.o.
Green colors is dominant to blue colors.
Dominant varieties can never be invisible, if a bird carries a dominant variety it is always visible. A double factor bird has got the same dominant variety from both of the parents while a single factor bird got one dominant variety from either the cock or the hen. In the table you can see what to expect when breeding with dominant varieties. Recessive varieties can be carried invisible by the bird. It is only visible if it got the same variety from both the cock and the hen.