Scaly-breasted Munia also known as Nutmeg Mannikin (Lonchura punctulata) or spice finch on a bird feeder in Southern California

The Scaly-breasted Munia is about 11–12 centimetres (4.3–4.7 in) long and weighs 12–16 grams (0.026–0.035 lb). The adult has a stubby dark bill typical of grain eating birds, brown upperparts and a dark brown head. The underparts are white with dark scale markings. The sexes are similar, although males have darker markings on the underside and a darker throat than females. Immature birds have pale brown upperparts, lack the dark head found in adults, and have uniform buff underparts that can be confused with juveniles of other munia species such as the Tricoloured Munia (Lonchura malacca) across the Asian and island populations and the Black-throated Munia (Lonchura kelaarti) in parts of India or Sri Lanka. Populations within their wide distribution range show variations in plumage color and size. Along with other Estrildines, these species are thought to have originated in Asia. The species been introduced to other parts of the world due to its popularity as a cage bird and populations have established in the wild Source Wikipedia