Brown Goshawk (Accipiter fasciatus) - BirdLife species factsheet

Brown Goshawk Accipiter fasciatus

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Subspecies rosselianus previously placed in A. cirrocephalus (del Hoyo and Collar 2014) but now included in current species following Schodde (2015), hence this is a new species concept. Recent phylogenetic analyses suggested that this species forms a monophyletic group with A. gularis and A. virgatus, this group being close to A. cirrocephalus (Breman et al. 2013). Has hybridized with A. novaehollandiae (Parrish and White 1997). Subspecies natalis may belong to A. novaehollandiae complex (treated as subspecies of A. hiogaster in Ferguson-Lees and Christie [2001]), or may even be separate species. Birds of Buru (S Moluccas) traditionally separated as subspecies buruensis, but identical to N Australian didimus; status remains uncertain, as Buru individuals could refer to migrants of didimus or represent a resident form. Twelve subspecies recognized.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2022. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Least Concern
2016	Not Recognised
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	20,200,000 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	5.44 years	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population size of this species has not been estimated but its range spans a vast area wherein it is quite common (eBird 2022).

Trend justification: The population is precautionarily suspected of declining. Although this species is tolerant of habitat degradation, it may be impacted by ongoing forest cover loss in the Lesser Sundas (Global Forest Watch 2022, based on data from Hansen et al. [2013] and methods disclosed therein).

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Australia	extant	native	yes
Christmas Island (to Australia)	extant	native	yes
Indonesia	extant	native	yes
New Caledonia (to France)	extant	native	yes
Norfolk Island (to Australia)	extant	native	yes
Papua New Guinea	extant	native	yes
Solomon Islands	extant	native	yes
Timor-Leste	extant	native	yes
Vanuatu	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	Rural Gardens	suitable	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Artificial/Terrestrial	Urban Areas	suitable	resident
Forest	Subtropical/Tropical Dry	suitable	resident
Grassland	Subtropical/Tropical High Altitude	suitable	resident
Savanna	Dry	suitable	resident
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	suitable	resident
Altitude	0 - 2000 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Brown Goshawk Accipiter fasciatus. Downloaded from https://datazone.birdlife.org/species/factsheet/brown-goshawk-accipiter-fasciatus on 28/11/2024.
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 28/11/2024.