VU
Bare-throated Bellbird Procnias nudicollis
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Taxonomy

Taxonomic note

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.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - A2cd+3cd+4cd

Red List history
Year Category Criteria
2016 Vulnerable A2cd+3cd+4cd
2012 Vulnerable A2cd+3cd+4cd
2008 Vulnerable A2c,d; A3c,d; A4c,d
2004 Vulnerable
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Near Threatened
Species attributes

Migratory status full migrant Forest dependency High
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 2,720,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor suspected 2007
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 30-49 - - -
Decline (10 years/3 generation past and future) 30-49 - - -
Number of subpopulations - - -
Largest subpopulations 100 - - -
Generation length (yrs) 4.6 - - -

Population justification: Although locally fairly common, it is rare at many sites; its population probably closer to the upper limit of the band 2,500-9,999 mature individuals, equating to 3,750-14,999 individuals in total, which is rounded here to 3,500-15,000 individuals. This population estimate is provisional and requires confirmation.

Trend justification: A rapid and on-going population decline is suspected, consistent with rates of habitat loss and trapping for the cage-bird trade.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Parque Nacional Iguazú y alrededores
Argentina Parque Provincial Cruce Caballero
Argentina Parque Provincial Uruzú y Reserva Forestal San Jorge
Argentina San Pedro
Brazil Área de Proteção Ambiental de Guaratuba
Brazil Baixo-Sul
Brazil Boa Nova / Serra da Ouricana
Brazil Campos Gerais do Paraná
Brazil Complexo Pedra Azul / Forno Grande
Brazil Engenho Coimbra (Usina Serra Grande)
Brazil Estação Ecológica de Juréia-Itatins
Brazil Estação Veracruz
Brazil Fazenda Pindobas IV e Arredores
Brazil Guaraqueçaba / Jacupiranga / Cananéia
Brazil Ilha Grande
Brazil Ilhabela State Park (Parque Estadual de Ilhabela IBA)
Brazil Ilhas Comprida e Cananéia
Brazil Itanagra
Brazil Maciço Florestal de Paranapiacaba
Brazil Maciços da Tijuca e Pedra Branca
Brazil Mata da Campina e Fragmentos Adjacentes
Brazil Murici
Brazil Parque Estadual da Serra do Brigadeiro
Brazil Parque Estadual da Serra do Mar (entre Caraguatatuba e Picinguaba)
Brazil Parque Estadual da Serra do Mar (entre Santos e São Sebastião)
Brazil Parque Nacional da Chapada Diamantina
Brazil Parque Nacional do Caparaó
Brazil Parque Nacional do Iguaçu
Brazil Região de Blumenau
Brazil Região dos Aparados da Serra
Brazil Reserva Biológica de Duas Bocas
Brazil Reserva Biológica de Poço das Antas
Brazil Reserva Biológica União
Brazil Santa Teresa
Brazil Serra Bonita
Brazil Serra da Bocaina / Paraty / Angra dos Reis
Brazil Serra da Cantareira
Brazil Serra do Marumbi
Brazil Serra do Tabuleiro State Park (Parque Estadual da Serra do Tabuleiro IBA)
Brazil Serra do Tinguá
Brazil Serra dos Órgãos
Brazil Serras das Lontras e do Javi
Brazil Sooretama / Linhares
Paraguay Arroyo Blanco
Paraguay Arroyo Tagatiya
Paraguay Bosque Mbaracayú
Paraguay Cerrados de Concepción
Paraguay Cerro Guazú
Paraguay Estancia Felicidad
Paraguay Estancia Itabó
Paraguay Estancia Sombrero
Paraguay Ka'aguy Rory
Paraguay Limoy
Paraguay Morombi
Paraguay Parque Nacional San Rafael
Paraguay Paso Curuzú
Paraguay Reserva Itabó - Itaipú
Paraguay Serranías de San Joaquín
Paraguay Tapyta
Paraguay Ypané Medio
Paraguay Ypeti

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major breeding
Forest Subtropical/Tropical Moist Lowland major non-breeding
Altitude 0 - 1150 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations Timing Scope Severity Impact
Past, Unlikely to Return Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Species mortality
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild Non-trivial Recent
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2017) Species factsheet: Procnias nudicollis. Downloaded from http://www.birdlife.org on 19/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/10/2017.