NT
Grey-crowned Tetraka Xanthomixis cinereiceps



Taxonomy

Taxonomic note
Xanthomixis cinereiceps (del Hoyo and Collar 2016) was previously listed as Bernieria cinereiceps.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

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

Red List history
Year Category Criteria
2016 Near Threatened A3c; C2a(ii)
2012 Near Threatened A3c;C2a(ii)
2008 Near Threatened A3c; C2a(ii)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Land-mass type - shelf island
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 285,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 20-29 - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 3.6 - - -

Population justification: The population size of this species has not been quantified, but it is described as fairly common in parts of its range.

Trend justification: The species's population is predicted to undergo a moderately rapid decline as rainforest in eastern Madagascar suffers increasing clearance and degradation for shifting agriculture.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Madagascar N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Madagascar Ambatovaky Special Reserve
Madagascar Andohahela National Park - Section I
Madagascar Andringitra National Park
Madagascar Anjozorobe Forest
Madagascar Bezavona Classified Forest
Madagascar Kalambatritra Special Reserve
Madagascar Mangerivola Special Reserve
Madagascar Mantadia National Park and Analamazaotra Special Reserve
Madagascar Marojejy National Park
Madagascar Marotandrano Special Reserve
Madagascar Masoala National Park
Madagascar Midongy South National Park
Madagascar Onive Classified Forest
Madagascar Ranomafana National Park and extension
Madagascar South Anjanaharibe Special Reserve and extension
Madagascar Tsaratanana Strict Nature Reserve and extension
Madagascar Zafimaniry Forest
Madagascar Zahamena National Park and Strict Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 900 - 2000 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2019) Species factsheet: Xanthomixis cinereiceps. Downloaded from http://www.birdlife.org on 15/07/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/07/2019.