Originally Posted by Egghead_Jr
Don't worry unless it turns red. Not pink or orange but red. Usually around 5 weeks the cockerels comb turns color. Pullets of single comb birds don't turn color until point of lay which is anywhere from 18 weeks to 30 weeks of age.
They are at almost 6 weeks and have the same color comb. Feather growth and leg size appear the same it's just the overall shape of their bodies and the size on the one's comb.
Here is the more feminine one, it has a smaller comb and a bigger rounder body:
The one that had a bigger comb from the beginning has a smaller more slender longish body. It's comb is bigger but still a nice pale color:
Here they are together. You can see the difference in their body shape and size...