This species is listed as Vulnerable in the IUCN Red List of Threatened Species (https://www.iucnredlist.org/).
 

This is also known as the White-cheeked Bulbul.
 

Previously known in several subspecific forms, now as:
(1) Black-crested Bulbul — Pycnonotus flaviventris (Tickell, 1833) (Himalaya)

This is also known as the Striated Green Bulbul.