The yellow bunting or Japanese yellow bunting (Emberiza sulphurata) is a passerine bird of eastern Asia which belongs to the genus Emberiza in the bunting family Emberizidae. It is 14 cm long and has a conical, grey bill, pinkish-brown feet and brown eyes. The male is grey-green above with black streaks on the back. The underparts are yellow-green (brightest on the throat and belly) with streaks on the flanks. It has black lores, a narrow black chin, a pale eye ring and white outer tail feathers. There are two bars on the wing, formed by pale tips to the median and greater wing coverts. The female is similar to the male but paler without the black on the lores and chin. The species has a twittering song and a soft tsip call.