Chestnut bulbul 
or chestnut-backed bulbul (Hemixos castanonotus)
Cành cạch hung
Formerly considered a subspecies of the Ashy bulbul.

The chestnut bulbul or chestnut-backed bulbul (Hemixos castanonotus) is a songbird in the bulbul family, Pycnonotidae.
The bird is found in southern China and northern Vietnam. 

Traits:
- The Hemixos lineage with its stark white throat;
- Chestnut upper neck, nape and mantle;

Pycnonotidae
pycno-
 Pycnonotus
 puknos "thick" or "compact" and 
 -nōtos "-backed".

Hemixos Gr. hemi- half-; genus Ixos bulbul;
castanotus: Greek kastanon chestnut; 
-notos -backed.