I think my D'Uccles crowing is seriously the cutest thing I've ever heard, they are so high and squeaky, lol. So far, mine don't crow excessively and they aren't nearly as loud as my LF roos, some of which are downright obnoxious.
I also just got my first D'Uccle eggs this week! I've been getting one a day for a few days, then today I got two, so I know two of them have started! I set the first egg they gave me and it already shows development, I'm thrilled! I've got three golden neck pullets and two MF pullets with a golden neck roo, so I know I'm hoping for some blue MF