It can't be because I bought a d'uccle chick. I have had a d'uccle rooster before, and have had d'uccle/cochin mixed chicks. It can't be a silkie mix. The toe thing must just be a defect. I just sold 18 d'uccle/cochin mix chicks and ameraucana/cochin mix chicks. The d'uccle/cochin mix chicks...
The clearest pictures I can get; Silkie and d'Uccle. The Co-op didn't mention whether or not they were mixed. Only that they were straight run; there were a lot of cockerels left. The Silkie was missing all of the feathers on her back and part of her wings and legs. The d'Uccle was only missing...
We got this girl from my local Co-Op, they said it was a D'uccle and it looked like some of our younger D'uccle chick mixes. However it does have 5 toes and someone else said Silkie cross for the breed. she has feathers(not "fur" like the other Silkie) and boots but no muffs with a single comb.