Silkie chick developing comb

[Nduntsch]

Our 6ish week old Silkie chick is developing a comb. Our three others have no comb at all. Is it likely this one is a rooster?

 

[Crestcrazy2]

Most likely but you can never know with silkies until they either Crow or lay an egg

 

[Willawong Hill]

That looks like an unusual comb type for a silkie to me, almost like a single comb. I wonder if it has something else mixed in? That might be part of the reason it looks different.