i saw that you had posted about several different breeds. have you checked out
FeatherSite? it has information on tons of breeds and lots of pictures of the different color varieties. it helped me lots when i was deciding what to get recently.
also check the
Handy-Dandy Chicken Chart which has information on more than 60 breeds. this will show you production numbers, egg size and color, broodiness, behavior and rarity.
as for the d'Uccles,
here is their FeatherSite link.
the Chicken Chart says:
Belgian D'Uccle or Barbu d'Uccle
colors: Mille Fleur, Porcelain, Black, Buff, White, Blue Mottled, Splash, Golden Neck, others
First bred in Uccle (Belgium) before 1900 by Michel Van Gelder. Breed is often referred to simply as Mille Fleur, the most popular variety.
fair layer; creamy white eggs, tiny
small single comb with large spikes; white skin & shanks, white earlobe
great brooder (or annoyingly too frequent brooder); hardy; because of fancy feathering, not suited for foul weather; very slow to mature for full coloring; tolerates confinement; fliers; calm, cocks less aggressive than other banties