I have a chick that looks exactly like your black and white one!! Did you get yours from MPC? How old is she? What kind of comb does yours have? Mine was a "random assorted rare breed" that they sent; I thought that perhaps she was a SS hamburg, but am leaning towards lakenvelder because of her single comb and poor spangling... although she does have some faint spangles.
I'm excited to see what people say about yours!