Western red colobus
Piliocolobus badius (Kerr, 1792)
The western red colobus (Piliocolobus badius) is a species in the family Cercopithecidae, order Primates. Recorded adults weigh 7.25 kg to 9.21 kg and live up to 3.16 years. Its IUCN Red List status is Endangered.

Quick facts about the western red colobus
- Weight
- 7.25 kg – 9.21 kgsrc for Weight
- Length
- Not recorded
- Lifespan
- 3.16 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 161 dayssrc for Gestation
- Young per litter or clutch
- 1src for Young per litter or clutch
- Age at maturity
- 4.06 yearssrc for Age at maturity
- Litters or clutches a year
- 0.5src for Litters or clutches a year
- Active
- By day (diurnal)src for Active
- Lifestyle
- Arborealsrc for Lifestyle
- Conservation status
- Endangered (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the western red colobus live?
Not recorded
What is the western red colobus?
The western red colobus (Piliocolobus badius), also known as the bay red colobus, rust red colobus or Upper Guinea red colobus, is a species of Old World monkey in West African forests from Senegal to Ghana. All other species of red colobuses have formerly been considered subspecies of P. badius.
The monkey is a frequent prey of the common chimpanzee. In 1994, western red colobus monkeys infected many chimpanzees with Ebola virus after being hunted and consumed by the chimps.
From the Wikipedia article “Western red colobus” (en.wikipedia.org/w/index.php?title=Western_red_colobus&oldid=1377200769), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the western red colobus endangered?
The western red colobus is listed as Endangered on the IUCN Red List: it faces a very high risk of extinction in the wild.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Endangered species. What the categories mean.
How is the western red colobus classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderPrimates
- familyCercopithecidae
- genusPiliocolobus
- SpeciesPiliocolobus badius (Kerr, 1792)
Synonyms Colobus badius, Colobus ferruginosus, Colobus rufoniger, Procolobus badius, Simia badius, Simia ferruginea
Other names and names in other languages (20)
- Bay colobusEnglish
- Red colobusEnglish
- Upper Guinea Bay colobusEnglish
- Upper Guinea red colobusEnglish
- Upper Guinea red colobusEnglish
- كولبس أحمر غربيArabic
- Gueréza červenáCzech
- Roter StummelaffeGerman
- Westafrikanischer StummelaffeGerman
- Colobo Rojo OccidentalSpanish
- Colobe baiFrench
- Colobe bai d'Afrique occidentaleFrench
- Colobe rougeFrench
- Colobe roux de l'OuestFrench
- nyugati vöröskolobuszHungarian
- ニシアカコロブスJapanese
- RødkolobusNorwegian Bokmål
- gerezanka rudaPolish
- Colobo-Vermelho-OcidentalPortuguese
- Красный толстотелRussian
Relatives of the western red colobus
Other species in the same genus Piliocolobus.

Zanzibar red colobus
Piliocolobus kirkii

Tana river red colobus
Piliocolobus rufomitratus

Udzungwa red colobus
Piliocolobus gordonorum

Pennant's colobus
Piliocolobus pennantii
Preuss's red colobus
Piliocolobus preussi
Foa's red colobus
Piliocolobus foai
CompareWestern red colobus vs Zanzibar red colobusWestern red colobus vs Tana river red colobusWestern red colobus vs Udzungwa red colobusWestern red colobus vs Pennant's colobus
Common questions
Answered only where our data holds the answer.
How big is the western red colobus?
An adult western red colobus weighs 7.25 kg – 9.21 kg, according to values recorded on Wikidata.
Is the western red colobus endangered?
The western red colobus is listed as Endangered on the IUCN Red List, meaning it faces a very high risk of extinction in the wild.
How long does the western red colobus live?
The western red colobus has a recorded lifespan of 3.16 years.
How long is the western red colobus pregnant?
The recorded gestation period is 161 days.
What kind of animal is the western red colobus?
The western red colobus (Piliocolobus badius) belongs to the family Cercopithecidae in the order Primates.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Western red colobus (Piliocolobus badius). Retrieved from https://creaturedata.com/animals/western-red-colobus
“Western red colobus (Piliocolobus badius).” CreatureData, 2026, https://creaturedata.com/animals/western-red-colobus.
@misc{western_red_colobus_2026,
title = {Western red colobus (Piliocolobus badius)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/western-red-colobus},
note = {Data as of 2026-11-11}
}