Hens or Roos? Silkie/frizzle bantams!!

[We-love-chickens]

Hi guys I'm looking for some help. I have 8 silkie/frizzle bantams and I know they are hard to sex but I was wondering if anyone on here had any idea of what these may be.
thank you in advance and sorry about the pics it's hard to get the chicks to stand still.

 

[The Happster]

Bit early to tell. How old are they?

 

[We-love-chickens]

Bit early to tell. How old are they?

i did think it may be too early but I thought I'd give it a go. They are 4 weeks old.

 

[The Happster]

They're very cute. It should be easier to tell in a few more weeks.