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

Taxonomic note

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.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2016	Near Threatened	A2c+3c+4c
2012	Near Threatened	A2c+3c+4c
2011	Near Threatened	A2c; A3c; A4c
2008	Near Threatened
2004	Near Threatened
2000	Lower Risk/Near Threatened
1994	Lower Risk/Near Threatened
1988	Near Threatened

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

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	280,000	medium
Severely fragmented?	no	-

	Value	Data quality	Derivation	Year of estimate
Number of mature individuals	unknown	not applicable	not applicable	0
Population trend	decreasing	poor	suspected	2000-2011
Decline % (10 years/3 generations future)	20-29	-	-	-
Decline % (10 years/3 generations past and future)	20-29	-	-	-
Percentage in largest subpopulation	100	-	-	-
Generation length (years)	3.6	-	-	-

Population justification: The global population size has not been quantified, but this species is described as 'uncommon'.

Trend justification: It is estimated that at least 50% of the species's range in Panama has been deforested during the last 30 years (G. R. Angehr in litt. 2011), whilst in Colombia, where the majority of its range is found, the species's population is suspected to have undergone a rapid decline during the last three generations, i.e. 30% over 11 years (Fundación ProAves in press), owing to severe habitat loss and fragmentation. The overall rate of decline is thus suspected to have been 20-29% over the last three generations. The factors driving rapid deforestation in its range, such as the expansion of agriculture, plantations and mining, are expected to continue (G. R. Angehr in litt. 2011; Fundación ProAves in press).

Country/Territory	Presence	Origin	Resident	Breeding	Non-breeding	Passage
Colombia	extant	native		yes
Panama	extant	native		yes

Country/Territory	IBA Name
Colombia	Zona deltáica-estuarina del Río Sinú
Panama	Darién National Park

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Wetlands (inland)	Bogs, Marshes, Swamps, Fens, Peatlands	major	resident
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	major	resident
Altitude	0 - 600 m	Occasional altitudinal limits	(max) 700 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
Energy production & mining	Mining & quarrying	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 (2023) Species factsheet: Aphanotriccus audax. Downloaded from http://datazone.birdlife.org/species/factsheet/black-billed-flycatcher-aphanotriccus-audax on 23/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 23/09/2023.