• 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. 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.
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
-	-	A3c+4c

Red List history

Year	Category	Criteria
2022	Vulnerable	A3c+4c
2016	Vulnerable	A3c
2012	Vulnerable	A3c
2008	Near Threatened	A2c; A3c; A4c; C2a(i)
2004	Near Threatened
2000	Lower Risk/Near Threatened
1994	Lower Risk/Least Concern
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	1,030,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	poor	suspected	2016-2028
Rate of change over the past 10 years/3 generations (longer of the two periods)	20-29%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	30-39%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	30-39%	-	-	-
Generation length	3.87 years	-	-	-
Number of subpopulations	2-100	-	-	-

Population justification: The population size has not been quantified.

Trend justification: The species is assessed as being in decline as a consequence of the loss of its habitat. Over the past three generations (11.6 years), roughly 15% of tree cover was lost within the range (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). Even though the species appears to have some degree of tolerance to habitat degradation (A. Lees in litt. 2011) it appears to prefer the interior of extensive forest patches (Portes et al. 2011, D. M. Lima in litt. 2022), and therefore it is assumed that population declines were aggravated by habitat degradation. It is here tentatively suspected that forest degradation proceeded at half the rate of tree cover loss, so that the total habitat loss amounted to 22-23% over the last three generations. Assuming that population declines are roughly equivalent to habitat loss, the population may have declined by 20-29% over the same period. Tree cover loss has been accelerating since 2016 to a rate equivalent to 23% over three generations (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). Under the assumption that forest degradation is likewise accelerating to 50% of the rate of tree cover loss, i.e. to 11-12% over three generations, the overall rate of habitat loss may now be 34-35% over three generations. The current rate of population decline is therefore placed in the band 30-39% over three generations.

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

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

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	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
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Pearly Parakeet Pyrrhura lepida. Downloaded from https://datazone.birdlife.org/species/factsheet/pearly-parakeet-pyrrhura-lepida 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.