Picture 2 looks like an australorp maybe Roo and I believe you're barred Rock is a Roo, and the rest are I believE Pullets, I'm still new x3 but I believe if you hold him/her upside down on their back, the Roo will kick as for the Hen/Pullet she'll not kick either bring legs in or just let them go straight forward which my pullets do. They're all very pretty ~
Orp - pullet
Aust - possible cockerel
Barred Rock - pullet (tail curve this early doesn't mean much)
Easter Egger Black - pullet, maybe
Easter Egger White - pullet
Aust - pullet
My guesses