Black-faced Ibis Theristicus melanopis


Taxonomic note

Theristicus melanopis and T. branickii (del Hoyo and Collar 2014) were previously lumped as T. melanopis following SACC (2005), and before then were split as T. melanopis and T. branickii 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
2016 Least Concern
2014 Least Concern
2012 Not Recognised
2008 Not Recognised
2006 Not Recognised
2004 Least Concern
2000 Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency low
Land-mass type Average mass -

Estimate Data quality
Extent of Occurrence (breeding/resident) 5,090,000 km2
Extent of Occurrence (non-breeding) 4,230,000 km2
Severely fragmented? no -
Estimate Data quality Derivation Year of estimate
Population size unknown poor estimated 2014
Population trend stable - suspected -
Generation length 9.6 years - - -

Population justification: The population is estimated to number 25,000-100,000 individuals (Wetlands International 2014).

Trend justification: The population was considered to be stable between 1990-2000 (Wetlands International 2014).

Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Argentina extant native yes yes yes
Chile extant native yes yes
Peru extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Ecuador Parque Nacional Cotopaxi

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Pastureland suitable
Forest Temperate suitable resident
Grassland Temperate major
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable
Altitude 0 - 3000 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Theristicus melanopis. Downloaded from on 04/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from on 04/03/2024.