Pallas's Reed Bunting
Emberiza pallasi
Pallas's reed bunting is a small passerine bird, similar to a small reed bunting and possesses a small granivore-type bill. The male has a black head and throat, a white neck collar and underparts, and a heavily streaked grey back (the reed bunting has a browner back). The female is much duller, with a streaked brown head, and is less streaked below than the female reed bunting. The song of the male is a repetitive sherp.
ID text from Wikipedia, CC BY-SA 4.0

Yellow-breasted Bunting
Emberiza aureola
The yellow-breasted bunting is a small passerine, ranging from 14 to 16 cm (5.5 to 6.3 in) in length, and weighing 17 to 26 g (0.6 to 0.9 oz). For a bunting, it is large and rather stocky. The breeding male has bright white underparts with black flank streaks, brown upperparts, black face and throat bar, and a pink lower mandible. The female has a heavily streaked grey-brown back, and less intensely yellow underparts. She has a whitish face with dark crown, eye and cheek stripes. The juvenile is similar, but the background colour of the underparts and face is buff.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Pallas's Reed Bunting and Yellow-breasted Bunting.