The
house sparrow (
Passer domesticus) is a
bird of the
sparrow family Passeridae, found in most parts of the world. A small bird, it has a typical length of and a mass of . Females and young birds are coloured pale brown and grey, and males have brighter black, white, and brown markings. One of about 25
species in the
genus Passer, the house sparrow is native to most of Europe, the
Mediterranean region, and much of Asia. Its intentional or accidental
introductions to many regions, including parts of Australia, Africa, and the Americas, make it the most widely distributed wild bird.