I got straight run Barred Rocks, five of them and two died. I think the three left are males. They are about 2 weeks now. Let me see what you all think...
This bottom two are not barred rocks, barred cochin bantams we think, but one is a male the other is female we are pretty sure about this.
I have had two BRs turn out to be males and both of them had the definite barring (big white stripes with a few small black stripes) on the wing feathers from a very young age. The girl had mostly black with a few whitish spots on the wings. I can't really say 100% sure yours are boys yet though, I would wait until about 5 weeks because that is when my boys combs turned red and started growing huge.