Colombian Red Howler
Alouatta seniculus
The Colombian red howler or Venezuelan red howler is a South American species of howler monkey, a type of New World monkey, found in the western Amazon Basin in Venezuela, Colombia, Ecuador, Peru and Brazil. The population in the Santa Cruz Department in Bolivia was split off as a separate species, the Bolivian red howler, in 1986, and more recently, splitting off the population in northeastern South America and Trinidad as the Guyanan red howler has occurred.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Colombian_red_howler
Taxonomy & Classification
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Primates
Family
Atelidae
Genus
Alouatta
Colombian Red Howler belongs to the family Atelidae, order Primates, within the Mammalia class.
Species Profile
The Colombian red howler or Venezuelan red howler is a South American species of howler monkey, a type of New World monkey, found in the western Amazon Basin in Venezuela, Colombia, Ecuador, Peru and Brazil. The population in the Santa Cruz Department in Bolivia was split off as a separate species, the Bolivian red howler, in 1986, and more recently, splitting off the population in northeastern South America and Trinidad as the Guyanan red howler has occurred. All howler monkeys belong to the family Atelidae and the infraorder Platyrrhini.
The Colombian Red Howler faces severe population declines primarily due to extensive deforestation and habitat fragmentation across its range in South America. Agricultural expansion, cattle ranching, logging, and human settlement development have dramatically reduced and isolated forest patches, making populations vulnerable to local extinctions.
Key Facts
Habitat & Distribution
Threats
IUCN Red List: Endangered
The Colombian Red Howler faces severe population declines primarily due to extensive deforestation and habitat fragmentation across its range in South America. Agricultural expansion, cattle ranching, logging, and human settlement development have dramatically reduced and isolated forest patches, making populations vulnerable to local extinctions.
Agricultural expansion and cattle ranching
Deforestation and habitat loss
Habitat fragmentation
Human settlement and infrastructure development
Logging and timber extraction
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Colombian Red Howler (Alouatta seniculus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/colombian-red-howler