NT
Scallop-breasted Antpitta Grallaricula loricata



Taxonomy

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. 2005 and updates. 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
- - -

Red List history
Year Category Criteria
2021 Near Threatened B1ab(iii)
2016 Near Threatened B1ab(i,ii,iii,v)
2012 Near Threatened B1ab(i,ii,iii,v)
2008 Near Threatened B1a+b(i,ii,iii,v)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Near Threatened
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 16,100 medium
Number of locations 11-100 -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
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) 1-9 - - -
Decline (10 years/3 generation past and future) 1-9 - - -
Number of subpopulations 2-10 - - -
Percentage in largest subpopulation 1-89 - - -

Population justification: The global population size has not been quantified, but this species is described as uncommon. However, since its easily-overheard song was first recorded in 2004 (Verea 2004), it has been seen regularly at several different localities within Yurubí, Macarae, Henri Pittier and El Ávila National Parks (Verea 2004, C. J. Sharpe in litt. 2011). During surveys in suitable habitat, it was found to be common, comprising 2.4-3.5% of the bird community and being recorded in 80-83% of surveys (Verea 2004).The subpopulation structure has not been assessed; however its strict habitat requirements and territorial behaviour (Verea and Greeney 2020) and the spatial spread of records (per eBird 2021) suggest that it forms several disjunct subpopulations.

Trend justification: Data on population trends are lacking. The species is suspected to be declining slowly, owing to habitat loss in parts of its range through logging of forests for agriculture and fires (C. Verea in litt. 2020; Verea and Greeney 2020). As the species regularly uses secondary growth (Verea and Greeney 2020) declines are difficult to quantify, but they are not thought to exceed 10% over ten years.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Venezuela Parque Nacional El Ávila and surrounding areas
Venezuela Henri Pittier National Park (Parque Nacional Henri Pittier IBA)
Venezuela Monumento Natural Pico Codazzi
Venezuela Parque Nacional San Esteban
Venezuela Parque Nacional Sierra de San Luis
Venezuela Parque Nacional Yurubí

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 800 - 2200 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Scale Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2022) Species factsheet: Grallaricula loricata. Downloaded from http://www.birdlife.org on 22/05/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/05/2022.