Black-masked White-eye
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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 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. It is endemic to the Philippines. Its natural habitat is subtropical or tropical moist montane forest.


Description and Taxonomy

EBird 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 The cinnamon ibon (''Hypocryptadius cinnamomeus'') is a species of bird endemic to the mountains of Mindanao in the Philippines. Monotypic within the genus ''Hypocryptadius'', it is classified as an old world sparrow Its natural habitat is tropic ...
, Warbling white-eye, and Black-and-cinnamon fantail. Similar to
Yellow-bellied whistler The yellow-bellied whistler (''Pachycephala philippinensis''), or Philippine whistler, is a species of bird in the family Pachycephalidae that is endemic to the Philippines. Its natural habitats are subtropical or tropical moist lowland forest a ...
, 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 * ''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 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 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 - just not to the same extent as lowland forest.


References

Mindanao white-eye Birds of Mindanao Mindanao white-eye Taxonomy articles created by Polbot {{Zosteropidae-stub