Is that the photo where you see saddle feathers coming in?
That photo was posted by @MysteryChicken as an example of a normal male Porcelain d'Uccle. It is not the same bird as the puzzling one pictured in the first post of this thread. (Notice that the photo where you circled the feathers says...
Has this bird laid any eggs? Some hens do crow. You might just have a crowing hen.
I would think a crowing hen is more likely than a hen-feathered d'Uccle rooster, but either one is definitely a possibility.