Chestnut-eared Bunting

The chestnut-eared bunting, also called the grey-headed bunting, is a 15–16 cm bunting whose breeding range extends from the Himalayas locally across China to south-eastern Siberia, Korea and northern Japan. Northern birds migrate south to winter in southern Japan, southern China, Taiwan, north-eastern India, Bangladesh and South-east Asia. (Wikipedia, general species account)

The plumage is mostly brown with dark streaks, and the male has a grey crown and nape, chestnut ear-coverts and bands of black and chestnut across the breast. The cup-shaped nest is built at ground level or low in a bush, holding three to six, most often four, whitish eggs speckled reddish brown, incubated for 12 days. The song is a rapid twittering that accelerates and ends in a distinctive two- or three-note phrase. (Wikipedia, general species account)