Chestnut bulbul
Conservation status
Least Concern (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Pycnonotidae
Genus:	Hemixos
Species:	H. castanonotus
Binomial name
Hemixos castanonotus R. Swinhoe, 1870
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.

Taxonomy and systematics

Formerly, some authorities classified the chestnut bulbul in the genus Hypsipetes and also as a subspecies of the ashy bulbul.

Subspecies

Two subspecies are currently recognized:^[2]

• H. c. canipennis - Seebohm, 1890: Found in southern China and north-eastern Vietnam
• H. c. castanonotus - R. Swinhoe, 1870: Found in northern Vietnam and on Hainan