What colour is this called?

[Seafenton]

This is the top pullets sibling (tipping roo). I think he might be grey too then?

 

[LynnaePB]

This is the top pullets sibling (tipping roo). I think he might be grey too then?

Yes that little cutie looks like it is probably a gray as well.

From what I can see I'd agree that it is looking a little more cockerel like. Silkies can be tough to figure out sometimes though!