• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	B1ab(iii)+2ab(iii)	B1ab(iii)+2ab(iii); D1

Red List history

Year	Category	Criteria
2021	Endangered	B1ab(iii)+2ab(iii)
2016	Endangered	B1ab(ii,iii,v)+2ab(ii,iii,v); C2a(ii)
2012	Endangered	B1ab(ii,iii,v)+2ab(ii,iii,v);C2a(ii)
2008	Endangered	B1a+b(ii,iii); B2a+b(ii,iii); C2a(ii)
2005	Vulnerable
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

Migratory status	not a migrant	Forest dependency	high
Land-mass type	shelf island	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	784 km2	medium
Area of Occupancy (breeding/resident)	240 km2	medium
Number of locations	3-6,4	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	977 mature individuals	medium	estimated	2003
Population trend	decreasing	poor	suspected	2001-2027
Generation length	8.42 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The total population is estimated to number at least 977 mature individuals (Mauro 2006), roughly equivalent to 1,400 individuals in total. It is suspected that the species may no longer occur to the west of Majalibit Bay, which was the only specific location assigned to specimens collected in the first half of the 20th Century. However there is no information on the trend of the population since the investigations at the start of the 20th Century (Mauro 2002, 2005, 2006). There continue to be sightings on Mt Danai and occasional records of presumed wandering immatures and possibly non-breeders at lower levels (eBird 2020). The observations of these apparently dispersing individuals suggests that it is appropriate to assume there is a single connected population, although confirmation of this is desirable. However, Mauro (2006) found that these records were very rare and never pertained to birds with adult male plumage, and indeed appeared to be related to movements during drought periods and should be considered as extralimital sightings. However, if it were to be demonstrated that there is a floating population of mature individuals in areas away from the restricted breeding habitat then the total number of mature individuals may be larger. To date there has been little habitat loss within the altitudinal range of the species and any population impacts of feral dogs or pigs are unquantified, although the latter are suspected to significantly impact reproductive success at least on Mt. Danai (Davies 2008).

Trend justification: The population is suspected to be declining at a slow or moderate rate, owing to hunting, predation by dogs and pigs and habitat loss, particularly from fire.

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

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	620 - 970 m	Occasional altitudinal limits	(min) 200 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species mortality
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation
Climate change & severe weather	Droughts	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Causing/Could cause fluctuations		Medium Impact: 6
		Stresses Reduced reproductive success
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Majority (50-90%)		Slow, Significant Declines		Low Impact: 4
		Stresses Indirect ecosystem effects, Ecosystem degradation, Reduced reproductive success
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Canis familiaris	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Sus scrofa	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Reduced reproductive success
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Ecosystem degradation, Reduced reproductive success

Purpose	Scale
Food - human	subsistence

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Recommended citation
BirdLife International (2024) Species factsheet: Waigeo Brushturkey Aepypodius bruijnii. Downloaded from https://datazone.birdlife.org/species/factsheet/waigeo-brushturkey-aepypodius-bruijnii on 18/12/2024.
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 18/12/2024.