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

Taxonomic note
Pionites leucogaster, P. xanthomerius and P. xanthurus (del Hoyo and Collar 2014) were previously lumped as P. leucogaster 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
-	-	A3cd+4cd

Red List history

Year	Category	Criteria
2022	Vulnerable	A3cd+4cd
2016	Endangered	A4cd
2014	Endangered	A4cd
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	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,140,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	2016-2033
Rate of change over the past 10 years/3 generations (longer of the two periods)	29%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	38%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	38%	-	-	-
Generation length	5.72 years	-	-	-

Population justification: The global population size has not been quantified, but the species is described as 'fairly common' (Stotz et al. 1996).

Trend justification: The species is assessed as being in decline as a consequence of the loss, fragmentation and degradation of its habitat and the potential threat of hunting and trapping. Tree cover within the range has been lost at a rate of 16% over the past three generations (17.1 years; Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). As the species is restricted to undisturbed forests and only tolerates low levels of habitat conversion (Collar et al. 2020), population declines may be steeper than the rate of tree cover loss suggests. To account for the impact of disturbance and forest degradation, it is here tentatively assumed that the rate of total habitat loss exceeds the rate of tree cover loss by half, i.e. 8%, so that an overall 24% of habitat was lost over the past three generations. The potential impact of hunting and trapping has not been quantified, but in the absence of exact data it is tentatively assumed that this threat adds another 5% to the rate of decline. Based on these calculations, it is suspected that the population declined by 29% over the past three generations. Since 2016, the rate of tree cover loss has been increasing to a rate equivalent to 22% over three generations (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). Under the assumption that disturbance and degradation add a relative half to this rate, i.e. 11%, and that hunting and trapping account for an additional 5%, the population may now be declining by 38% over three generations into the future.

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

Country/Territory	IBA Name
Brazil	Cristalino / Serra do Cachimbo
Brazil	Ji-Paraná / Roosevelt
Brazil	Novo Progresso
Brazil	Serra dos Carajás

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Dry	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Swamp	major	resident
Altitude	0 - 800 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%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Agro-industry grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality

Purpose	Scale
Pets/display animals, horticulture	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Green-thighed Parrot Pionites leucogaster. Downloaded from https://datazone.birdlife.org/species/factsheet/green-thighed-parrot-pionites-leucogaster on 22/12/2024.
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 22/12/2024.