Is there still a chance this could be a hen?

[GemHensandFriends]

I have 15 young silkies at the moment. A couple have very obvious wattles and combs coming in already and these chicks are only 4-7 weeks old. Is there a chance these chicks could still be hens?
This little is 5 weeks old.

 

[MysteryChicken]

The Buff is a cockerel.

 

[GemHensandFriends]

The Buff is a cockerel.

Figured I was in denial lol

 

[Rhodebar Lover]

The Buff is a cockerel.

I agree!