A small, plump finch with a very thick pink bill. The black head and white cheek patch are distinctive. Juveniles have a similar color pattern but are grayer. Social; forages in flocks and roosts communally. Forages in rice fields, grasslands, meadows, and urban and suburban areas (in introduced range). Call consists of one or more musical chirps. Native to the Indonesian islands of Java and Bali, where now quite rare. Introduced widely across the globe including India, Philippines, Venezuela, Puerto Rico, and the Hawaiian Islands.