• 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., 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. 2005 and updates. 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
-	-	-

Red List history

Year	Category	Criteria
2024	Least Concern
2016	Vulnerable	A2c+3c+4c;B1ab(i,ii,iii,iv,v);C2a(i)
2012	Vulnerable	A2c+3c+4c;B1ab(i,ii,iii,iv,v);C2a(i)
2008	Vulnerable	A2c; A3c; A4c; B1a+b(i,ii,iii,iv,v); C2a(i)
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	205,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	10000-19999 mature individuals	poor	suspected	2023
Population trend	decreasing	poor	suspected	2017-2027
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Generation length	2.67 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: Generally a rare and localised species (Freile and Restall 2018, eBird 2023), favouring humid patches within deciduous and semi-deciduous forests but it is noted that it can be locally fairly common to very common (Farnsworth et al. 2020). The highest densities have been reported from Jauneche/Bosque Protector Pedro Franco Dávila, a small remnant forest block (138 hectares), where up to three pairs per hectare were found in a rapid assessment in July 1991 (Parker and Carr 1992). However, this is effectively the only such remnant in this entire region. Far more typical are reports from Cerro Blanco, where Christmas Bird Count effort over 800 hectares annually recorded only 1-2 individuals, roughly 0.25 per square kilometre (E. von Horstman in litt. 2008). The range has become much more completely known in the past decade with the growth of citizen science data and development of national extinction risk status assessments. For the latter approximate population sizes have been generated for Peru at between 2,500 and 10,000 mature individuals (SERFOR 2018), but no estimate was given for Ecuador (per Freile et al. 2019).
Under a precautionary approach, the global population is suspected to number 10,000-19,999 mature individuals, but an accurate quantification is urgently required.

Trend justification: This species is suspected to be declining in numbers, in line with habitat loss within its range. Tree cover is lost at a rate of 2% over ten years (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). Even considering the species' dependence on humid forests, and accounting for additional impacts of habitat degradation and fragmentation, population declines are likely slow. They are here tentatively placed in the band 1-9% over ten years.

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

Country/Territory	IBA Name
Ecuador	Bosque Protector Cerro Blanco
Ecuador	Bosque Protector Chongón-Colonche
Ecuador	Bosque Protector Jatumpamba-Jorupe
Ecuador	Bosque Protector Molleturo Mullopungo
Ecuador	Cañón del río Catamayo
Ecuador	Cazaderos-Mangaurquillo
Ecuador	Centro Científico Río Palenque
Ecuador	Cordillera El Bálsamo
Ecuador	Estación Científica Pedro Franco Dávila
Ecuador	La Tagua
Ecuador	Parque Nacional Machalilla y alrededores
Ecuador	Reserva Biológica Tito Santos
Ecuador	Reserva Buenaventura
Ecuador	Reserva Ecológica Arenillas
Ecuador	Reserva Ecológica Comunal Loma Alta
Ecuador	Reserva Natural Tumbesia-La Ceiba-Zapotillo
Ecuador	Tambo Negro
Peru	Bosques Secos de Salitral - Huarmaca - Olmos
Peru	Coto de Caza El Angolo
Peru	Laquipampa
Peru	Parque Nacional Cerros de Amotape

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Dry	major	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Moist Montane	suitable	resident
Altitude	0 - 2340 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses None
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	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		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
Residential & commercial development	Housing & urban areas	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Grey-breasted Flycatcher Lathrotriccus griseipectus. Downloaded from https://datazone.birdlife.org/species/factsheet/grey-breasted-flycatcher-lathrotriccus-griseipectus 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.