Let's play a game of "pullet or roo"

[ChristieB]

I WANT TO PLAY!
HEN OR ROO BARRED ROCK!

Sorry I don't know barred rocks but I think your babe is too young to sex based on comb size, mine are 4 weeks old and as you can see there's only small differences

 

[Madisan]

I love barred rocks! I have 2 3 week olds. Wait a couple more weeks until they start feathering in and post again. I have 1 pullet and 1 cockerel. I will post pics of mine so you can see the difference. The pullets feathering looks more "speckled" at this age and the cockerel has larger barring Making it look like its thicker white.

Also you can notice my cockerel from the comb difference. Hope this helps!
2nd pic is my cockerel 3rd is the pullet