Barred rock hen or roo?!

[Slthompson13]

I have 12ish week old chickens that are all different breeds. I’m new to having chickens and I had ordered 8 all female sexed chickens. I know sometimes mistakes are made here. One recently started crowing around 5:45 am. Very immature crowing sound still. Only crows a few times and only in the morning. I’ve read post after post and I still can’t tell weather or not I have a pullet or a cockerel on my hands. I guess I’m being hopeful in thinking maybe it’s just taking on the top of the pecking order since I only have hens. Any insight?

 

[nuthatched]

Two dudes

 

[Logar]

Both look like cockerels

 

[SilverBirds]

Both are cockerels.

 

[Yard Farmer]

Two cockerels.