Need help in identifying what I have in nest

[Devito2]

What do you mean by the cock must be a split to blue?

[Craig52]

To get Silver both parent must be split to blue as it is impossible if one only is to get a silver. As said earlier a silver is two mutations combined, Euro yellow and blue. The yellow mutation makes the blue mutation whitish or light grey.

[Devito2]

Nice looking silver I think?

[Craig52]

Nice looking bird mate, now to wait till it colours up.