chestnut bulbul

{{Short description|Species of bird}}

{{Speciesbox

| image = Hemixos castanonotus-A9 00441 (cropped).jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=BirdLife International |date=2016 |title=Hemixos castanonotus |volume=2016 |page=e.T22713204A94365324 |doi=10.2305/IUCN.UK.2016-3.RLTS.T22713204A94365324.en |access-date=17 November 2021}}

| taxon = Hemixos castanonotus

| authority = R. Swinhoe, 1870

| range_map = Hemixos castanonotus distribution map.png

| synonyms =

• Hemixos castanotus
• Hemixos casteonotus
• Hemixus castanonotus
• Hypsipetes castanonotus
• Hypsipetes flavalus castanonotus

}}

The chestnut bulbul or chestnut-backed bulbul (Hemixos castanonotus) is a songbird in the bulbul family, Pycnonotidae. The species was first described by Robert Swinhoe in 1870. It is found in southern China and northern Vietnam. Its natural habitat is subtropical or tropical moist lowland forests; it primarily resides in the canopy.{{Cite journal |last=Hao |first=Zezhou |last2=Zhang |first2=Chengyun |last3=Li |first3=Le |last4=Gao |first4=Bingtao |last5=Wu |first5=Ruichen |last6=Pei |first6=Nancai |last7=Liu |first7=Yang |date=February 2024 |title=Anthropogenic noise and habitat structure shaping dominant frequency of bird sounds along urban gradients |url=|journal=iScience |volume=27 |issue=2 |pages=109056 |doi=10.1016/j.isci.2024.109056 |issn=2589-0042|pmc=10867645 }}