The white-browed jungle flycatcher (Vauriella insignis), also known as the Luzon jungle-flycatcher and the Rusty-flanked jungle-flycatcher, is a species of bird in the Old World flycatcher family Muscicapidae. It is endemic to Luzon island, in the Philippines. The natural habitat of the white-browed jungle flycatcher is tropical moist montane forests of the Cordillera Mountain Range and possibly Sierra Madre Mountains. It is threatened by habitat loss.
| White-browed jungle flycatcher | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Muscicapidae |
| Genus: | Vauriella |
| Species: | V. insignis
|
| Binomial name | |
| Vauriella insignis (Ogilvie-Grant, 1895)
| |
| Synonyms | |
|
Rhinomyias insignis | |
Description and taxonomy
editEBird describes the bird as "A medium-sized bird of montane forest in northern Luzon. Large for a flycatcher. Dark brown on the upperparts and chest, rufous on the sides with a white brow, throat, belly, and underside of the base of the tail. Superficially similar to Eyebrowed Thrush, but smaller, lacking the gray throat and yellow base to the bill. Voice consists of thin, high-pitched phrases and a short “shtck!."[2]
Along with the West Visayas' White-throated jungle flycatcher, Mindanao's Slaty-backed jungle flycatcher and Borneo's Eyebrowed jungle flycatcher, this species was previously placed in the genus Rhinomyias but was moved to Vauriella when a molecular phylogenetic study published in 2010 found that Rhinomyias was polyphyletic. This study also revealed that this species is not a flycatcher but a forest robin. A proposed name for the species group is "shade-dweller" [3][4]
Ecology and behavior
editNot much information of its diet in the wild but includes small invertebrates. Forages silently close to the forest floor, typically along forest edge.
No information at all about its breeding habits.[5]
Habitat and conservation status
editIt is found in tropical moist primary montane Forest above 950 meters above sea level. It is often found in the understory. All confirmed records are in the Cordillera Mountain Range but there are also three sight records in the Sierra Madre.[6]
IUCN Red List has assessed this bird as vulnerable with the population being estimated at 2,500 to 9,999 mature individuals. This species' main threat is habitat loss due o deforestation through mining, logging and conversion of habitat into farmland. Mossy forests of the Cordillera Central are threatened by conversion to agricultural land, primarily for vegetable production. Forest cover in the Sierra Madre has declined by 83% since the 1930s.
It occurs in a few protected areas like Mount Pulag National Park. There are two supposed records Northern Sierra Madre Natural Park but its presence in the Sierra Madres is yet to be definitively confirmed. However, most protected areas in the Philippines lack protection and enforcement from habitat conversion and logging.
Conservation actions proposed include to conduct surveys using mist-nets to determine its current distribution and status. Extend the Northern Sierra Madre Natural Park to incorporate Mt Los Dos Cuernos. Propose further known key sites (i,e. Mount Polis) for establishment as formal protected areas. Control habitat degradation in Mount Pulag National Park.[7]
References
edit- ^ BirdLife International (2016). "Vauriella insignis". IUCN Red List of Threatened Species. 2016: e.T22709177A94194918. doi:10.2305/IUCN.UK.2016-3.RLTS.T22709177A94194918.en. Retrieved 12 November 2021.
- ^ "Rusty-flanked Jungle-flycatcher". Ebird.
- ^ Sangster, G.; Alström, P.; Forsmark, E.; Olsson, U. (2010). "Multi-locus phylogenetic analysis of Old World chats and flycatchers reveals extensive paraphyly at family, subfamily and genus level (Aves: Muscicapidae)". Molecular Phylogenetics and Evolution. 57 (1): 380–392. doi:10.1016/j.ympev.2010.07.008. PMID 20656044.
- ^ Gill, Frank; Donsker, David (eds.). "Chats, Old World flycatchers". World Bird List Version 6.2. International Ornithologists' Union. Retrieved 20 May 2016.
- ^ Clement, Peter (2020). "Rusty-flanked Jungle Flycatcher (Vauriella insignis), version 1.0". Birds of the World. doi:10.2173/bow.rufjuf1.01species_shared.bow.project_name. ISSN 2771-3105.
- ^ Allen, Desmond (2020). Birds of the Philippines. Barcelona: Lynx and Birdlife International Guides. pp. 326–327.
- ^ International), BirdLife International (BirdLife (2016-10-01). "IUCN Red List of Threatened Species: Vauriella insignis". IUCN Red List of Threatened Species. Retrieved 2021-09-16.
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