Ashy bulbul 
(Cành cạch xám, Hemixos flavala) 
The ashy bulbul (Hemixos flavala) is a species in the bulbul family, Pycnonotidae.

Some consider the brown-backed bulbul a subspecies of the ashy bulbul.

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