White-lined Antbird Myrmoborus lophotes


Taxonomic note

Myrmoborus lophotes (del Hoyo and Collar 2016) was previously listed as Percnostola lophotes.


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: #

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 A3c
2012 Near Threatened A3c
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 266,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 500000-999999 poor estimated 2020
Population trend Decreasing 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 - - -
Percentage in largest subpopulation - - -

Population justification: The species is described as fairly common (Stotz et al. 1996, Zimmer and Isler 2020), but the global population size has not been quantified directly. Based on density estimates of a congener (M. myotherinus: 40 mature individuals/km2 in Peru; Santini et al. 2018) and precautionarily assuming that only around 10% of the range is occupied, the total population may number c. 800,000 mature individuals. To account for uncertainty, the population size is therefore placed in the band 500,000-999,999 mature individuals here.

Trend justification: The population trend has not been assessed directly. Forest loss over the past ten years has been low within the range (2%; Global Forest Watch 2020). The species is strictly forest-dependent and may be susceptible to fragmentation and edge effects (A. Lees in litt. 2011), and thus population declines may be exacerbated by habitat degradation and slightly higher than forest loss. The species is therefore tentatively suspected to undergo a slow decline at up to 10% over ten years.

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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Bolivia Yungas Inferiores de Madidi
Bolivia Reserva Nacional Amazónica Manuripi Heath
Bolivia Tahuamanu
Peru Reserva Amazónica
Peru Los Amigos
Peru Manu
Peru Paratori
Peru Río Orosa
Peru Cordillera Vilcabamba
Brazil Alto Juruá
Brazil Parque Nacional da Serra do Divisor
Brazil Tabocais
Peru Tambopata
Peru Bahuaja-Sonene

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Swamp major resident
Altitude 0 - 1450 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluctuations Low Impact: 5
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2022) Species factsheet: Myrmoborus lophotes. Downloaded from on 25/06/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 25/06/2022.