• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2024	Least Concern
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	12,300,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	16700-66700 mature individuals	poor	estimated	2023
Population trend	stable	-	suspected	-
Generation length	8.94 years	-	-	-

Population justification: The global population size is estimated at 25,000-100,000 individuals (Wetlands International 2023), which equates to 16,700-66,700 mature individuals. The overall population trend is considered to be stable over three generations (26.82 years) (Wetlands International 2023).

Trend justification:   .

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Bolivia	extant	native	yes
Brazil	extant	native	yes
Colombia	extant	native	yes
Ecuador	extant	native	yes
French Guiana	extant	native	yes
Guyana	extant	native	yes
Paraguay	extant	native	yes
Peru	extant	native	yes
Suriname	extant	native	yes
Trinidad and Tobago	possibly extinct	native
Venezuela	extant	native	yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Grassland	Subtropical/Tropical Seasonally Wet/Flooded	suitable	resident
Wetlands (inland)	Bogs, Marshes, Swamps, Fens, Peatlands	major	resident
Altitude	0 - 800 m	Occasional altitudinal limits

Purpose	Scale
Food - human	subsistence, national
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Horned Screamer Anhima cornuta. Downloaded from https://datazone.birdlife.org/species/factsheet/horned-screamer-anhima-cornuta on 15/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 15/12/2024.