They are about 4 to 6ish weeks old I'm really really hoping for pullets I traded my rooster for them and dont particularly want another rooster right now.
I have a little barred rock that is about the same age and looks just like your one on the left, mine is a male or at least I’m about 50% sure it is and I was hoping for a female cause I rescued a barred rock male about a month ago and wanted him to have a lady!!!!
I am going out on a limb and say the lighter one on the left is a male and the darker one on the right is a female, just my opinion, so I trust you will let us know in a few months...