The Black-crowned White-eye (Zosterops atrifrons) is a songbird

Songbird

A songbird is a bird belonging to the suborder Passeri of the perching birds . Another name that is sometimes seen as scientific or vernacular name is Oscines, from Latin oscen, "a songbird"...

 species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

. It is closely related to the Old World babbler

Old World babbler

The Old World babblers or timaliids are a large family of mostly Old World passerine birds. They are rather diverse in size and coloration, but are characterised by soft fluffy plumage. These are birds of tropical areas, with the greatest variety in Southeast Asia and the Indian Subcontinent...

s, and its family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Zosteropidae might better be included in the Tiimalidae. Its subspecies

Subspecies

Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 from the Sulawesi

Sulawesi

Sulawesi is one of the four larger Sunda Islands of Indonesia and is situated between Borneo and the Maluku Islands. In Indonesia, only Sumatra, Borneo, and Papua are larger in territory, and only Java and Sumatra have larger Indonesian populations.- Etymology :The Portuguese were the first to...

 region might warrant recognition as distinct species Z. subatrifrons. The Sangihe White-eye

Sangihe White-eye

The Sangihe White-eye is a species of bird in the white-eye family. It is endemic to Sangihe, Indonesia.Its natural habitat is subtropical or tropical moist montanes. It is threatened by habitat loss....

 (Z. nehrkorni) and the Seram White-eye

Seram White-eye

The Seram White-eye, Zosterops stalkeri, is a small passerine bird in the white-eye family. It is an endemic resident breeder in open woodland in Seram, Indonesia....

 (Z. stalkeri) were formerly included in Z. atrifrons, as is still, on occasion, the Black-fronted White-eye

Black-fronted White-eye

The Black-fronted White-eye is a songbird species. It is closely related to the Old World babblers, and its family Zosteropidae might better be included in the Tiimalidae. Some sources include this species within Z. atrifrons, the Black-crowned White-eye.It is found in Indonesia and Papua New Guinea...

 (Z. minor).

It is endemic to Indonesia

Indonesia

Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

. Its natural habitat

Habitat

* Habitat , a place where a species lives and grows*Human habitat, a place where humans live, work or play** Space habitat, a space station intended as a permanent settlement...

s are subtropical or tropical moist lowland forest

Forest

A forest, also referred to as a wood or the woods, is an area with a high density of trees. As with cities, depending where you are in the world, what is considered a forest may vary significantly in size and have various classification according to how and what of the forest is composed...

s and subtropical or tropical moist montane forests. Quite common, it is not considered a threatened species

Threatened species

Threatened species are any speciesg animals, plants, fungi, etc.) which are vulnerable to endangerment in the near future.The World Conservation Union is the foremost authority on threatened species, and treats threatened species not as a single category, but as a group of three categories,...

 by the IUCN.