If anyone might be a girl, it is the one on the far right.
Otherwise, I'm not 100% sure, but I believe the second to right one in the back is a cockerel and the one on the far left is a cockerel. The Silver Duckwing colored one in the center I'm not too sure on. I'd need more/better photos.
I raised their mommy and daddy from eggs I hatched earlier this year. This was a first for me. I thought they looked like roos, but you gave me hope on at least one. Thanks!