Brehm , 1855 Passer engimaticus Zarudny , 1903 Passer ahasvar Kleinschmidt , 1904 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 16 cm (6.3 in) and a weight of 24–39.5