• 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
2022	Least Concern
2016	Vulnerable	B1ab(i,ii,iii,v);C2a(i)
2012	Vulnerable	B1ab(i,ii,iii,v);C2a(i)
2008	Vulnerable	B1a+b(i,ii,iii,v); C2a(i)
2004	Vulnerable
2000	Vulnerable
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)	89,500 km2	medium
Area of Occupancy (breeding/resident)	22,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	20000-49999 mature individuals	poor	estimated	2014
Population trend	decreasing	poor	suspected	2016-2028
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	4.06 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population density has been assessed in various parts of the range: In the Alto Quindió-Acaime Reserve, 1.5-6 individuals were found along 10-km transects, in Ucumarí Regional Park it occurs at a density of 0.8 individuals/ha, while in Caldas a density of 0.9 individuals/km² were estimated (Renjifo et al. 2014 and references therein). Based on these values, and assuming that one-third of the available habitat is occupied, the population was estimated at roughly 117,000 individuals (Renjifo et al. 2014). This is equivalent to around 78,000 mature individuals. However, this value may well be an overestimation (Renjifo et al. 2014) and therefore, the population is here tentatively placed in the band 20,000-49,999 mature individuals, though this requires confirmation.

Trend justification: The population is suspected to be declining slowly, in line with rates of habitat loss within its range. Within the range, tree cover is lost at a rate of up to 2% over three generations (12.2 years; Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). The rate of habitat loss is given as 6.25% over ten years (Renjifo et al. 2014), which equates to 7.6% over three generations. Given the species' apparent tolerance of degradation and disturbance, the rate of population decline is unlikely to exceed the rate of habitat loss; it is here tentatively placed in the band 1-9% over three generations.

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

Country/Territory	IBA Name
Colombia	Alto Quindío
Colombia	Bosques del Oriente de Risaralda
Colombia	Cuenca del Río Toche
Colombia	Páramos y Bosques Altoandinos de Génova
Colombia	Puracé Natural National Park
Colombia	Reservas Comunitarias de Roncesvalles
Ecuador	La Bonita-Santa Bárbara

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 Montane	suitable	resident
Altitude	1790 - 4270 m	Occasional altitudinal limits

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		Minority (<50%)		Negligible declines		Low Impact: 4
		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		Minority (<50%)		Negligible declines		Low Impact: 4
		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
Residential & commercial development	Housing & urban areas	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation, Ecosystem conversion
Transportation & service corridors	Roads & railroads	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Bicolored Antpitta Grallaria rufocinerea. Downloaded from https://datazone.birdlife.org/species/factsheet/bicolored-antpitta-grallaria-rufocinerea 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.