I hope I AM wrong, for your sake. The combs on ALL of them look rather paler than what you'd normally see in a cockerel of this age, but....... I COULD BE WRONG, I have been many times. Here's what I saw that makes me think cockerels:
Skipped #4 pullet, & #5 ???
Who's next???
I could very well be wrong. Let's hope so. It looks like some of them could be damp, like after a bath or foraging in wet vegetation? so it's hard to discern their feather shapes exactly.
I'm not skilled much, but at this age I look for:
Combs & wattles: Red and prominent = roo. Pale and...
I'll play!
#1 = roo
#2 = roo
#3 = roo
#4 = pullet, unless he's a slower-developing Brahma with no red comb or tail feathers yet.
#5 - ??? the comb says roo maybe, but the tail makes me think pullet
#6 = roo
#7 = roo? the comb looks like a pullet, but unless hens in this breed also have long...