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Grey Sibia Heterophasia gracilis
BirdLife is updating this factsheet for the 2016 Red List
Please email us with any relevant information

IUCN Red List history

Year Category
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 High
Land mass type   Average mass -


  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 240,000
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals Unknown not applicable Not Applicable 0
Population trend Unknown -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 4.9 - - -
Population justification: The global population size has not been quantified, but the species is described as common in India and Myanmar and very local in China (del Hoyo et al. 2007).
Trend justification: The population trend is difficult to determine because of uncertainty over the impacts of habitat modification on population sizes.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
China (mainland) Native Extant Yes      
India Native Extant Yes      
Myanmar Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
India Ango or Anko Hills site factsheet
India Balpakram Complex site factsheet
India Barail Range site factsheet
India Blue Mountain (Phawngpui) National Park site factsheet
India Bunning Wildlife Sanctuary site factsheet
India Dzuku Valley site factsheet
India Fakim Wildlife Sanctuary and Saramati area site factsheet
India Intaki National Park site factsheet
India Kailam Wildlife Sanctuary site factsheet
India Khonoma Nature Conservation and Tragopan Sanctuary site factsheet
India Lengteng Wildlife Sanctuary site factsheet
India Magu Thingbu site factsheet
India Mawphlang Sacred Grove site factsheet
India Mount Paona site factsheet
India Mount Zanibu site factsheet
India Mount Ziphu site factsheet
India Murlen National Park site factsheet
India Namdapha - Kamlang site factsheet
India Nokrek National Park site factsheet
India Norpuh Reserve Forests site factsheet
India Pfutsero-Chizami site factsheet
India Puliebadze-Dzukou-Zapfu site factsheet
India Satoi Range site factsheet
India Shiroi Community Forest site factsheet
India Singhalila National Park site factsheet
India Upper Shillong site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane major resident
Forest Temperate suitable resident
Altitude 900 - 2800 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2016) Species factsheet: Heterophasia gracilis. Downloaded from on 26/10/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from on 26/10/2016.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Least Concern
Family Timaliidae (Babblers and parrotbills)
Species name author (McClelland, 1840)
Population size Unknown mature individuals
Population trend Unknown
Distribution size (breeding/resident) 240,000 km2
Country endemic? No
Links to further information
- Summary information on this species