This is my first time with d'uccles. I have three porcelain chicks who are 3-5 days older than their "step-sibling" silkie chicks, but they're quite a bit tinier. They are feathering out on their wings (my silkies are just barely starting to get feathers), but they still look like tiny little cotton puff balls size-wise (well okay a little bit bigger than that ). So are the d'uccles much smaller than the silkies as adult birds? The chicks all seem to be doing fine - though the d'uccles don't seem quite as robust as the silkies. All are being raised by a Momma silkie hen, who is incredibly gentle and calm compared to my previous 'broodies'.