LC
Pale-billed Parrotbill Suthora atrosuperciliaris



Taxonomy

Taxonomic note

The genus Suthora has been moved from the family Sylviidae to Paradoxornithidae following Cai et al. (2019). Previously placed in Chleuasicus (del Hoyo and Collar 2016) but moved to current genus following Cai et al. (2019). Previously listed as Paradoxornis atrosuperciliaris. Racial identity of birds in W Arunachal Pradesh (W of R Dihang), in NE India, uncertain, presumed to belong with oatesi. Two subspecies recognized.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2021. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2024 Least Concern
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Near Threatened
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency medium
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 1,410,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected -
Generation length 2.43 years - - -

Population justification: The global population size has not been quantified, but the species is described as generally rather uncommon, although fairly common at some scattered sites (del Hoyo et al. 2007). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 8.1% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.

Trend justification:   .


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Bangladesh extant native yes
Bhutan extant native yes
China (mainland) extant native yes
India extant native yes
Laos extant native yes
Myanmar extant native yes
Thailand extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Laos Nakai-Nam Theun
Laos Nam Xam
Thailand Doi Chiang Dao
Vietnam Sinh Long
Vietnam Van Ban

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane major resident
Grassland Subtropical/Tropical High Altitude suitable resident
Grassland Subtropical/Tropical Seasonally Wet/Flooded suitable resident
Altitude 215 - 2100 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Pale-billed Parrotbill Suthora atrosuperciliaris. Downloaded from https://datazone.birdlife.org/species/factsheet/pale-billed-parrotbill-suthora-atrosuperciliaris on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/12/2024.