Green-backed whistler
# Green-backed whistler

The green-backed whistler (Pachycephala albiventris) or olive-backed whistler, is a species of bird in the family Pachycephalidae. It is endemic to the Philippines.

Its natural habitats are tropical moist lowland forest and tropical moist montane forest.

## Taxonomy and systematics

Formerly, some authorities considered the green-backed whistler to be a subspecies of the mangrove whistler.

### Subspecies

Three subspecies are recognized:

* P. a. albiventris – (Ogilvie-Grant, 1894): Found on northern Luzon (Philippines)
* P. a. crissalis – (Zimmer, JT, 1918): Originally described as a separate species. Found on central and southern Luzon (Philippines)
* P. a. mindorensis – (Bourns & Worcester, 1894): Originally described as a separate species. Found on Mindoro (Philippines)
