Black and white Mannikin - Lonchura bicolor
Sexes similar. Adult: glossy black tinged green ablow and to center of breast with irregularly barred flanks, small white spots at base of tertials.
The song is a short series of contact notes run together.
Contact calls are sof 'kip' (given with bill closed) and a short piping or whistling 'seeet seeet', usually given in flight; alarm call is a short harsh note.