• 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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	B1ab(ii,iii,v)+2ab(ii,iii,v); C2a(ii)

Red List history

Year	Category	Criteria
2021	Vulnerable	B1ab(ii,iii,v)+2ab(ii,iii,v)
2016	Vulnerable	B1ab(i,ii,iii)
2012	Vulnerable	B1ab(i,ii,iii)
2008	Vulnerable	B1a+b(i,ii,iii)
2006	Vulnerable
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	4,800 km2	medium
Area of Occupancy (breeding/resident)	597 km2
Number of locations	6-10	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	6000-15000 mature individuals	poor	suspected	2000
Population trend	decreasing	poor	inferred	2018-2028
Rate of change over the past 10 years/3 generations (longer of the two periods)	13%	-	-	-
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	3.4 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The species is described as overall scarce to locally common, and 'fairly common' in the Cerro Colorado area (Angehr and Dean 2010; Baldwin 2020). The population size is preliminarily suspected to fall into the band 10,000-19,999 individuals. This equates to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.
The subpopulation structure has not been formally assessed; however in view of the small range and presumably high dispersal abilities (per Baldwin 2020) the species likely functions as one subpopulation.

Trend justification: The species is undergoing a large, significant decline (Partners in Flight 2019). The rate of decline is thought to exceed 50% between 1970 and 2017 (Partners in Flight 2019; see also Panjabi et al. 2019), which equates to c.13% over the past ten years.
Forest loss within the range has been low between 2001 and 2020 (2%; Global Forest Watch 2021). However, deforestation rates have increased considerably since 2018, to an average of 0.4% per year (Global Forest Watch 2021). Assuming that forest loss is continuing at this rate into the future, it may amount to 4% over the next three generations (10.2 years). Based on this value, the population is suspected to decline at <10% over the next three generations.

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

Country/Territory	IBA Name
Panama	Cerro Santiago
Panama	Fortuna Forest Reserve
Panama	Santa Fé National Park

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1200 - 1800 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses 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		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation
Pollution	Agricultural & forestry effluents - Herbicides and pesticides	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Indirect ecosystem effects

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Recommended citation
BirdLife International (2024) Species factsheet: Yellow-green Brushfinch Pselliophorus luteoviridis. Downloaded from https://datazone.birdlife.org/species/factsheet/yellow-green-brushfinch-pselliophorus-luteoviridis on 23/12/2024.
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 23/12/2024.