Quail isn't a recognized color for D'Uccles. I, too, would like to see a pic of her standing as well as a better pic of her comb. From that angle her comb doesn't look like a true single. She might be a D'Anvers/D'Uccle cross. Which could explain the quail coloration.
Oh, and the color doesn't become part of the breed when you are entering. The breed would be Belgian Bearded D'Uccle and the variety would be AOV (if she meets all other breed requirements and is not a recognized color).