Pullets or Cockerels? Breeds? 6 weeks

[Rhodebar Lover]

And I was thinking the black ones are maybe barred rock crosses? It's odd none of then appear to be welsummer crosses or wyandottes...those hens were options too!

I am no generics expert, but since blue is a dilute if black, I would lean more towards being part Rhode Island Blue

 

[-ChickenLover-]

9 looks kinda like a cockerel, but I'm no expert on this, so don't take my word for it.