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

Taxonomic note
Thryophilus nicefori (del Hoyo and Collar 2016) was previously listed as Thryothorus nicefori.

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
C2a(i); D	C2a(i); D	B1ab(iii,v); C2a(i); D1+2

Red List history

Year	Category	Criteria
2016	Critically Endangered	C2a(i); D
2015	Critically Endangered	C2a(i); D
2012	Critically Endangered	C2a(i);D
2011	Critically Endangered	C2a(i)
2010	Critically Endangered	C2a(i)
2009	Critically Endangered	C2a(ii); D1
2008	Critically Endangered
2004	Critically Endangered
2000	Critically Endangered
1996	Critically Endangered
1994	Critically Endangered
1988	Threatened

Migratory status	not a migrant	Forest dependency	Does not normally occur in forest
Land mass type	Land-mass type - continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	13,000	medium
Number of locations	10	-
Fragmentation		-

	Estimate	Data quality	Derivation	Year of estimate
No. of mature individuals	30-200	good	observed	2009
Population trend	Decreasing	poor	suspected	-
Decline (3 years/1 generation past)		-	-	-
Decline (5 years/1 generation past)		-	-	-
Decline (10 years/1 generation past)		-	-	-
Decline (10 years/3 generation future)		-	-	-
Decline (10 years/3 generation past and future)		-	-	-
Number of subpopulations	2-100	-	-	-
Largest subpopulations	1-89	-	-	-
Generation length (yrs)	3.9	-	-	-

Population justification: Surveys between 2004 and 2008 recorded 77 individuals. An approximate estimate based on these surveys and other records gives a total global population of 250 individuals (S. Valderrama in litt. 2010). However, until this is confirmed to be accurate, the population band of 50-249 individuals seems appropriate. This equates to 33-166 mature individuals, rounded here to 30-200 mature individuals.

Trend justification: The species is suspected to be in decline owing to the spread of agriculture near the type locality, and because of threats to its dry forest habitat, although the likely rate of decline has not been quantified.

Country/Territory	Occurrence status	Presence	Resident	Breeding	Non-breeding	Passage
Colombia	N	Extant		Yes

Country/Territory	IBA Name
Colombia	Bosques Secos del Valle del Río Chicamocha
Colombia	Soatá

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Shrubland	Subtropical/Tropical Dry	major	resident
Altitude	800 - 2100 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Unknown
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines
		Stresses Ecosystem degradation
Natural system modifications	Fire & fire suppression	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2019) Species factsheet: Thryophilus nicefori. Downloaded from http://www.birdlife.org on 23/08/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/08/2019.