
Photo: L. Shyamal · CC BY-SA 3.0 (May be cropped or resized)
Passer flaveolus
Range
Myanmar to central Vietnam, and south to western Peninsular Malaysia
The plain-backed sparrow, also called the Pegu sparrow or olive-backed sparrow, is a sparrow found in Southeast Asia. Its range spans from Myanmar to central Vietnam, and south to the western part of Peninsular Malaysia (Wikipedia, general species account).