The Mindanao white-eye (''Heleia goodfellowi''), also known as the black-masked white-eye, is a species of

bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...

in the family

Zosteropidae The white-eyes are a family, Zosteropidae, of small passerine birds native to tropical, subtropical and temperate Sub-Saharan Africa, southern and eastern Asia, and Australasia. White-eyes inhabit most tropical islands in the Indian Ocean, the ...

. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

honours British zoological collector

Walter Goodfellow Walter Goodfellow (1866–1953) was a British zoological collector and ornithologist. Career Goodfellow began his career as a wildlife collector by collecting specimens for museums, but later concentrated on capturing live birds for private aviar ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

. Its natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

is subtropical or tropical moist

montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...

Description and Taxonomy

EBird eBird is an online database of bird observations providing scientists, researchers and amateur naturalists with real-time data about bird distribution and abundance. Originally restricted to sightings from the Western Hemisphere, the project e ...

describes the bird as "A fairly small bird of montane forest on Mindanao. Olive on the upperparts, darker in the wing and tail, with a blackish mask, dingy yellow underparts, and a pale gray throat. Usually found in mixed-species flocks with Cinnamon ibon,

Warbling white-eye The warbling white-eye (''Zosterops japonicus''), also known as the Japanese white-eye and mountain white-eye, is a small passerine bird in the white-eye family. The specific epithet is occasionally written ''japonica'', but this is incorrect due ...

, and Black-and-cinnamon fantail. Similar to Yellow-bellied whistler, but usually found at higher elevations, and has a thinner bill and dark mask. Gives a musical whistle and also a harsh grating call."

Subspecies

Three

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

are recognized: * ''Heleia goodfellowi goodfellowi'' - Central and South

Mindanao Mindanao ( ) ( Jawi: مينداناو) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of ...

* ''Heleia goodfellowi gracilis''- North East Mindanao * ''Heleia goodfellowi malindangensis''- West Mindanao and an undescribed subspecies in South East Mindanao

Habitat and Conservation Status

It inhabits tropical moist

primary Primary or primaries may refer to: Arts, entertainment, and media Music Groups and labels * Primary (band), from Australia * Primary (musician), hip hop musician and record producer from South Korea * Primary Music, Israeli record label Works * ...

and

secondary Secondary may refer to: Science and nature * Secondary emission, of particles ** Secondary electrons, electrons generated as ionization products * The secondary winding, or the electrical or electronic circuit connected to the secondary winding i ...

sub-montane and montane forest and

forest edge A woodland edge or forest edge is the transition zone (ecotone) from an area of woodland or forest to fields or other open spaces. Certain species of plants and animals are adapted to the forest edge, and these species are often more familiar to hu ...

from 1,250 - 2,400 meters above sea level. IUCN has assessed this bird as a least-concern species. Despite a limited range, it is said to be locally common in its range. As it occurs in rugged and inaccessible mountains, this has allowed a large portion of its habitat to remain intact. It is also able to tolerate

degraded forest A secondary forest (or second-growth forest) is a forest or woodland area which has re-grown after a timber harvest or clearing for agriculture, until a long enough period has passed so that the effects of the disturbance are no longer evident. ...

. However, the population is still said to be declining, as it is still affected by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

through deforestation, mining,

land conversion Land development is the alteration of landscape in any number of ways such as: * Changing landforms from a natural or semi-natural state for a purpose such as agriculture or housing * Subdividing real estate into lots, typically for the purpose ...

and

slash-and-burn Slash-and-burn agriculture is a farming method that involves the cutting and burning of plants in a forest or woodland to create a field called a swidden. The method begins by cutting down the trees and woody plants in an area. The downed vegeta ...

- just not to the same extent as lowland forest.

References

Mindanao white-eye The Mindanao white-eye (''Heleia goodfellowi''), also known as the black-masked white-eye, is a species of bird in the family Zosteropidae. The specific epithet honours British zoological collector Walter Goodfellow. It is endemic to the Philip ...

Birds of Mindanao

Taxonomy articles created by Polbot {{Zosteropidae-stub