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

Taxonomic note

Sarcophanops steerii (del Hoyo and Collar 2016) was previously listed as Eurylaimus steerii.

 

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.
Lambert, F.; Woodcock, M. 1996. Pittas, broadbills and asities. Pica Press, Robertsbridge, U.K.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	C2a(i)

Red List history

Year	Category	Criteria
2017	Vulnerable	C2a(i)
2016	Vulnerable	A2c+3c+4c;C2a(i)
2012	Vulnerable	A2c+3c+4c;C2a(i)
2008	Vulnerable	A2c; A3c; A4c; C2a(i)
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	180,000 km2	medium
Severely fragmented?	yes	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2500-9999 mature individuals	poor	estimated	1999
Population trend	decreasing	poor	suspected	2010-2023
Generation length	4.2 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: A preliminary population size estimate of fewer than 10,000 mature individuals is used here, but this requires further documentation.

Trend justification: Intense pressures on habitat are suspected to have driven rapid declines in the past. However, based on data from Tracewski et al. (2016) the rate of forest loss appears to have slowed, potentially as the few remaining habitat patches are increasingly confined to protected areas.

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

Country/Territory	IBA Name
Philippines	Basilan Natural Biotic Area
Philippines	Bislig
Philippines	Mount Apo
Philippines	Mount Dapiak-Mount Paraya
Philippines	Mount Diwata Range
Philippines	Mount Hilong-hilong
Philippines	Mount Kambinlio and Mount Redondo
Philippines	Mount Kampalili-Puting Bato
Philippines	Mount Kitanglad
Philippines	Mount Latian complex
Philippines	Mount Matutum
Philippines	Mount Sugarloaf
Philippines	Munai / Tambo
Philippines	Pasonanca watershed
Philippines	Siargao island

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Mangrove Vegetation Above High Tide Level	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	0 - 1000 m	Occasional altitudinal limits	(max) 1220 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Wood & pulp plantations - Agro-industry plantations	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Energy production & mining	Mining & quarrying	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
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 Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Mindanao Wattled Broadbill Sarcophanops steerii. Downloaded from https://datazone.birdlife.org/species/factsheet/mindanao-wattled-broadbill-sarcophanops-steerii 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.