Hen or roo?

[TarynLord]

I need some help sexing these babies! They are about 7 and a half weeks old!
First 2 are Brahma/legbar
All black on in the back in an ayam cemani
And the black one in the front is Indio/ Jersey giant
Thanks
I keep going back and forth but I think 3 hens 1 roo

 

[Cheekychook11]

Not the most experienced but I think I see more than one roo.. they all have big combs for seven weeks

 

[Squawkers]

That picture isn’t very good, but I think I see at least two cockerels.