What sex are my chickens

[Maddistee]

Hi,
My chicks are about 16 weeks old and we’re having trouble figuring out what sex these are.

We have no experience with polish and silkie birds so any help would be appreciated.

Thanks

 

[Poultrybonkers]

They look like pullets except maybe that last silkie

 

[LizGio]

They look like pullets except maybe that last silkie

I disagree but I don't know anything

 

[TheOddOneOut]

Males

The other two, I’m unsure.