By the feathering, they are what,...2 weeks old? If so, they are both pullets. D'Uccle boys grow their combs really early, and by 2 weeks if their comb isn't pink and bigger than yours are, they are girls.
Awesome! I would love for these to be little girls! I have heard they are pretty easily sexed, but I've never had D'uccles before. I will keep my fingers crossed! Thanks so much!