Pied
A variant of Java sparrow (Padda oryzivora)

Representative Java sparrowphoto — a dedicated image of this exact morph isn't available yet.
A mutation producing irregular white patches over the grey (or fawn) body, every bird uniquely marked. A captive-bred variegated line.
Keeper tips for this variant
Pied is variable and unstable in pattern — select evenly-marked breeders, but accept chicks will range from near-grey to heavily white.