• 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
-	-	A2c+3c+4c

Red List history

Year	Category	Criteria
2019	Vulnerable	A2c+3c+4c
2016	Endangered	B1ab(i,ii,iii,v)
2012	Endangered	B1ab(i,ii,iii,v)
2008	Endangered	B1a+b(i,ii,iii,v)
2006	Endangered
2004	Endangered
2000	Endangered
1994	Lower Risk/Near Threatened
1988	Lower Risk/Least Concern

Migratory status	not a migrant	Forest dependency	low
Land-mass type	continent	Average mass	18 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	152,000 km2	medium
Number of locations	11-100	-
Severely fragmented?	yes	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	1000-2499 mature individuals	poor	estimated	2019
Population trend	decreasing	poor	suspected	1998-2008
Rate of change over the past 10 years/3 generations (longer of the two periods)	30%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	30%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	30%	-	-	-
Generation length	4.6 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population is estimated to number 1,000-2,499 mature individuals.

Trend justification: A rapid and ongoing population decline is suspected due to forest loss and degradation.

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	Abras de Mantequilla
Ecuador	Bosque Protector Cerro Blanco
Ecuador	Bosque Protector Molleturo Mullopungo
Ecuador	Bosque Protector Puyango
Ecuador	Cazaderos-Mangaurquillo
Ecuador	Centro Científico Río Palenque
Ecuador	Hacienda Camarones
Ecuador	Parque Nacional Machalilla y alrededores
Ecuador	Reserva Buenaventura
Ecuador	Reserva Ecológica Arenillas
Ecuador	Reserva Ecológica Comunal Loma Alta
Ecuador	Reserva Natural Tumbesia-La Ceiba-Zapotillo
Ecuador	Río Toachi-Chiriboga
Peru	Bagua
Peru	Coto de Caza El Angolo
Peru	Parque Nacional Cerros de Amotape

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	0 - 750 m	Occasional altitudinal limits	(max) 1100 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, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Agro-industry grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
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, 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
Geological events	Earthquakes/tsunamis	Timing		Scope		Severity		Impact
		Past, Likely to Return		Minority (<50%)		Rapid Declines		Past Impact
		Stresses Ecosystem degradation, Species mortality
Pollution	Agricultural & forestry effluents - Herbicides and pesticides	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Slaty Becard Pachyramphus spodiurus. Downloaded from https://datazone.birdlife.org/species/factsheet/slaty-becard-pachyramphus-spodiurus 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.