LC
Greater Crescent-chested Puffbird Malacoptila striata



Taxonomy

Taxonomic note
Malacoptila striata and M. minor (del Hoyo and Collar 2014) were previously lumped as M. striata 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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2020 Least Concern
2016 Near Threatened A2c+3c+4c
2014 Near Threatened A2c+3c+4c
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,090,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 72000 - 129000 poor suspected 2020
Population trend Decreasing inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 1-10 - - -
Decline (10 years/3 generation past and future) 1-10 - - -
Number of subpopulations - - -
Percentage in largest subpopulation 1-89 - - -

Population justification: The species's population size and population density have not been directly estimated, but the species has been described as reasonably common (D. Lima in litt. 2020). Based on the minimum and first quartile population densities of congeners (0.65 and 1.5 individuals per km2, respectively), the area of forest with at least 30% canopy cover within the species's mapped range in 2010 (289,000 km2; Global Forest Watch 2020), and assuming that between 25% and 45% of the area of forest is occupied, the population size is suspected to be between the range 107,000 - 193,000 individuals, which roughly equates to 72,000 - 129,000 mature individuals.

Trend justification:

Data from Global Forest Watch indicates ongoing deforestation within the species's range (Global Forest Watch 2020). Although the species is tolerant of modified habitats, it is assumed that the ongoing deforestation is affecting the species's population size and the population size is inferred to be undergoing a continuing decline.

Based on data from Global Forest Watch, 7.5% of tree cover with at least 30% canopy cover within the species's range was lost over ten years from 2009-2019 (Global Forest Watch 2020). The species is tolerant of modified habitats and a detailed analysis of forest loss data within a municipality in the Atlantic Forest region has indicated that less than 30% of the area classified as forest loss was correctly classified (Andreacci & Marenzi 2020). The species is suspected to have undergone a population reduction of 1-8% over the past ten years. 

From 2010-2019, the year with the largest amount of tree cover loss within the species's range was 2017, with 3,130 km2 of tree cover loss (Global Forest Watch 2020). If this amount of loss were  to continue over ten years, it would result in 10% tree cover loss over the period. Taking this rate of loss as a worst-case estimate, the species is suspected to undergo a population reduction of 1-10% over the next ten years.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Brazil N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Brazil Baixo-Sul
Brazil Boa Nova / Serra da Ouricana
Brazil Serras das Lontras e do Javi
Brazil Sooretama / Linhares
Brazil Santa Teresa
Brazil Guaraqueçaba / Jacupiranga / Cananéia
Brazil Serra do Marumbi
Brazil Área de Proteção Ambiental de Guaratuba
Brazil Parque Nacional de Itatiaia
Brazil Serra dos Órgãos
Brazil Serra do Tinguá
Brazil Maciços da Tijuca e Pedra Branca
Brazil Serra da Bocaina / Paraty / Angra dos Reis
Brazil Região de Blumenau
Brazil Serra do Tabuleiro State Park
Brazil Parque Estadual da Serra do Mar (entre Caraguatatuba e Picinguaba)
Brazil Serra da Cantareira
Brazil Maciço Florestal de Paranapiacaba
Brazil Estação Ecológica de Juréia-Itatins
Brazil São Francisco Xavier / Monte Verde

Habitats & altitude
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
Forest Subtropical/Tropical Moist Montane major resident
Altitude 0 - 2100 m Occasional altitudinal limits  

Threats & impact
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%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2021) Species factsheet: Malacoptila striata. Downloaded from http://www.birdlife.org on 13/04/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 13/04/2021.