Momma, daughter, son. To distinguish hen chicks from cock chicks look at the breast feathers. Hens have a scallop where cocks have a verticle line in the middle of their feathers. Also, notice the wings of the hen chick is losing the barring and looks plain compared to the cock. The cock is also developing orange flight feathers. These birds are low Spaulding making them more difficult to sex at an early age.
