Black-headed Whistler (Pachycephala monacha)

Black-headed Whistler Pachycephala monacha

Current view: Data table and detailed info

Taxonomy

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.

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/Least Concern
1988	Lower Risk/Least Concern

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	799,000 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	increasing	-	estimated	-
Generation length	4.32 years	-	-	-

Population justification: The global population size has not been quantified, but the species is reported to be common in the western highlands but very local and scarce elsewhere on New Guinea (Beehler et al. 1986, Coates 1990). This population is estimated to be increasing in line with a range expansion into cultivated areas in New Guinea (del Hoyo et al. 2007).

Trend justification: This population is estimated to be increasing in line with a range expansion into cultivated areas in New Guinea (del Hoyo et al. 2007).

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Indonesia	extant	native	yes
Papua New Guinea	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Artificial/Terrestrial	Rural Gardens	suitable	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Altitude	550 - 1980 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Black-headed Whistler Pachycephala monacha. Downloaded from https://datazone.birdlife.org/species/factsheet/black-headed-whistler-pachycephala-monacha on 22/11/2024.
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 22/11/2024.