Yellow-breasted Bunting

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.

Emberiza aureola aureola breeds in boreal forests of Finland to Bering Sea migrating to Indochina. Emberiza aureola ornata breeds from the Amur River to Manchuria, N Korea, Kamchatka and Kuril Islands. It is migratory, wintering in south-east Asia, India, and North Korea. It is a rare but regular wanderer to western Europe. There are also ~4 records from the Aleutian Islands of Alaska and a 2017 record from Labrador, Canada. The species winters in large flocks in cultivated areas, rice fields and grasslands, preferring to roost in rice-fields. In the first third of 2023, roosts of up to 6,378 birds were found in reedbeds at Kyon Ka Pyin-Tap Seik Conservation Area, in the Irrawaddy Delta, Myanmar, exceeding previous known maxima for the species in southern Asia.