hi all im new to D'uccle chickens i first saw them while getting some laying hens and would describe it as love at first sight , long story short placed an order for some and after probs with incubaters and a bit of a wait i finaly have one with more to come anyway not sure on the gender of my chick any help appreciated
I'm not familiar with the breed but the white one looks to be a hen the brown one in the first pic is a roo.
the brown is a Rhode Island Red and i thought it was a male you can see his little spurs comming through
10 weeks is way too early for a hen to have that red of a comb. Unfortunately, spur nubs are present on both genders, so you cannot use those to determine rooster-ness. I would say that you have two roos, based on the age you gave.