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

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	C2a(i); D	B1ab(i,ii,iii,v); C2a(i); D1

Red List history

Year	Category	Criteria
2016	Endangered	C2a(i)
2012	Endangered	C2a(i)
2008	Endangered	C2a(i)
2006	Endangered
2004	Endangered
2000	Endangered
1996	Endangered
1994	Endangered
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	203,000 km2	medium
Number of locations	11-100	-
Severely fragmented?	yes	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	150-700 mature individuals	medium	estimated	2000
Population trend	decreasing	poor	suspected	1998-2008
Rate of change over the past 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Generation length	3.6 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population is estimated to number 250-999 individuals (G. Servat in litt. 1999, G. Engblom in litt. 2000). This equates to 167-666 mature individuals, rounded here to 150-700 mature individuals.

Trend justification: This species's population is suspected to be experiencing a moderate and ongoing decline, in line with habitat loss and degradation within its range.

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

Country/Territory	IBA Name
Bolivia	Bosque de Polylepis de Madidi
Bolivia	Bosque de Polylepis de Mina Elba
Bolivia	Bosque de Polylepis de Sanja Pampa
Bolivia	Bosque de Polylepis de Taquesi
Bolivia	Yungas Superiores de Apolobamba
Peru	Abra Málaga-Vilcanota
Peru	Cerro Huanzalá-Huallanca
Peru	Champará
Peru	Cordillera Huayhuash y Nor-Oyón
Peru	Cotahuasi
Peru	Lagos Yanacocha
Peru	Parque Nacional Huascarán
Peru	Runtacocha-Morococha
Peru	Santuario Histórico Machu Picchu

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	3700 - 4500 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation
Agriculture & aquaculture	Wood & pulp plantations - Scale Unknown/Unrecorded	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: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Ash-breasted Tit-tyrant Anairetes alpinus. Downloaded from https://datazone.birdlife.org/species/factsheet/ash-breasted-tit-tyrant-anairetes-alpinus on 23/11/2024.
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 23/11/2024.