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

Taxonomic note

Pteroglossus bitorquatus and P. sturmii (del Hoyo and Collar 2014) were previously lumped as P. bitorquatus following Sibley and Monroe (1990, 1993).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2023	Near Threatened	A3c+4c
2016	Endangered	A4c
2014	Endangered	A4c
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Migratory status	not a migrant	Forest dependency	high
Land-mass type		Average mass	142 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	1,026,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	2016-2030
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)	20-29%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Generation length	4.67 years	-	-	-

Population justification: The global population size has not been quantified, but this species is described as fairly common to common (Stotz et al. 1996, S. Dantas in litt. 2020).

Trend justification: Even though the species shows some tolerance of forest degradation and fragmentation, declines are suspected on the basis of habitat loss.
Within the range, 15% of tree cover has been lost over the past three generations (14 years); since 2016 this has been increasing to a rate equivalent to 21% over three generations (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). Moreover, a projection of future impacts of deforestation and climate change found that between 2020 and 2050 the species may lose between 14% and 42% of suitable habitat, assuming limited dispersal between occupied localities (de Moraes et al. 2020). This equates to a loss of 7-22% of suitable habitat over the next three generations. Under the precautionary assumption that population declines are roughly equivalent to the rate of habitat loss, the species may have declined by up to 20% over the past three generations, with declines starting to accelerate in 2016 to a rate of 20-29% over the next three generations.

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

Country/Territory	IBA Name
Brazil	Rio Capim
Brazil	Serra dos Carajás

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	suitable	resident
Altitude	0 - 550 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		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		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Eastern Red-necked Araçari Pteroglossus bitorquatus. Downloaded from https://datazone.birdlife.org/species/factsheet/eastern-red-necked-aracari-pteroglossus-bitorquatus on 25/12/2024.
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 25/12/2024.