Are these chickens hens or roosters? PLEASE help!

[JBoRanch]

I bought these from Tractor Supply when they were chicks. I have several RIR and a couple Black Australorps. They are about 3months old now, and I still cant figure out which are hens or roosters. Please help me! Thanks so much

 

[UnionMan]

Looks like all pullets.

 

[thebanthams]

not the best picture to see but I am seeing one red rooster, the others may be pullets, really can't see the two blacks well.

 

[AustralorpGirl]

I don't know about the reds, but in that first picture your black looks like a girl. All the roo's I've had grew combs out before the wattles and the girls wattles went dark red first.