I don't believe it is a cochin. My cochin babies were bigger than my d'uccles from the get go. It's possible that it's also a mille, maybe the beard will grow in later. I bought one from tsc that is the porcelain color, looks just like a d'uccle but No beard, so I guess technically it's a booted bantam. They are similar to d'uccles but have no beard or muffs