Marans roos, I should cull, but which one?

[Harris5]

I vote Rex.

 

[snowbird]

If it were me I would not keep either of the males as they are most likely from the same hatch and will carry to much color as the pullets seem to be colored already. It is almost impossible to get a BC male that is even close to the SOP. If you breed these together the most you can expect to get is a bunch of Dark egg layers.