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.
 

This is also known as the Square-tailed Bulbul and Himalayan Black Bulbul in various polytypic forms.
 

This is also known as the Rufous-bellied Bulbul.
 

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