what breed are these?

[Crazy for Chickens!]

I hope these are clearer

The first picture, and the bird on the right in the second is definitely a cockerel. I think pullets though on the others.

 

[Gray Farms]

The one with the red wing bars is a cockerel for sure.

 

[drumstick diva]

The "red wings mark of doom,=(cockerels.) strikes again - sorry