LC
Grey-cheeked Hornbill Bycanistes subcylindricus



Taxonomy

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
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
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 7,210,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Unknown not applicable -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 19 - - -

Population justification: The global population size has not been quantified, but the species is reported to be locally uncommon to common (del Hoyo et al. 2001).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Angola N Extant Yes
Burundi N Extant Yes
Cameroon N Extant Yes
Central African Republic N Extant Yes
Congo N Extant Yes
Congo, The Democratic Republic of the N Extant Yes
Côte d'Ivoire N Extant Yes
Equatorial Guinea N Extant Yes
Gabon N Extant Yes
Ghana N Extant Yes
Guinea-Bissau N Extant Yes
Kenya N Extant Yes
Liberia N Extant Yes
Nigeria N Extant Yes
Rwanda N Extant Yes
Sierra Leone N Extant Yes
South Sudan N Extant Yes
Sudan N Extant Yes
Tanzania N Extant Yes
Togo N Extant Yes
Uganda N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Angola Cuango
Angola Luachimo River (Chitato)
Burundi Kibira National Park
Burundi Bururi Forest Nature Reserve
Benin Ouémé river basin
Congo, The Democratic Republic of the Garamba National Park
Congo, The Democratic Republic of the Lendu Plateau
Congo, The Democratic Republic of the Itombwe Mountains
Central African Republic Manovo - Gounda - St Floris National Park complex
Central African Republic Bamingui-Bangoran National Park complex
Central African Republic Bozoum
Central African Republic Bangui
Central African Republic Dzanga-Ndoki National Park
Congo Nouabalé-Ndoki National Park complex
Congo Odzala National Park complex
Côte d'Ivoire Comoe National Park
Côte d'Ivoire Sangbe Mountain National Park
Côte d'Ivoire Mount Nimba Strict Nature Reserve
Côte d'Ivoire Gueoule and Glo Mountain Forest Reserves
Côte d'Ivoire Peko Mountain National Park
Côte d'Ivoire Marahoue National Park
Côte d'Ivoire Bossematie Forest Reserve
Cameroon Mbam Djerem National Park
Cameroon Korup National Park
Cameroon Bakossi mountains
Cameroon Dja Faunal Reserve
Cameroon Boumba - Bek
Cameroon Campo Ma'an complex
Cameroon Lobéké National Park
Gabon Lopé Faunal Reserve
Gabon Ipassa Strict Nature Reserve
Gabon Minkébé Forest Reserve
Ghana Ankasa Resource Reserve - Nini-Sushien National Park
Ghana Bia National Park and Resource Reserve
Ghana Boin Tano Forest Reserve
Ghana Kakum National Park - Assin Attandaso Resource Reserve
Ghana Nsuensa Forest Reserve
Ghana Pra-Sushien Forest Reserve
Equatorial Guinea Monte Alen National Park
Equatorial Guinea Nsork Highlands National Park
Guinea-Bissau Lagoas de Cufada
Kenya Cherangani Hills
Kenya Mau forest complex
Kenya North Nandi forest
Kenya South Nandi forest
Kenya Kakamega forest
Kenya Mount Elgon (Kenya)
Liberia Zwedru
Nigeria Okomu National Park
Nigeria Cross River National Park (Oban Division)
Nigeria Omo Forest Reserve
Nigeria Kagoro - Nindam Forest Reserves and vicinity
Rwanda Cyamudongo forest
Rwanda Nyungwe National Park
South Sudan Bengangai
Sierra Leone Tingi Hills Non-hunting Forest Reserve
Tanzania Rubondo Island National Park
Tanzania Minziro Forest Reserve
Uganda Bwindi Impenetrable National Park
Uganda Ruwenzori (Rwenzori) Mountains National Park
Uganda Kibale National Park
Uganda Queen Elizabeth National Park and Lake George
Uganda Semliki National Park
Uganda Semliki reserves
Uganda Mabira Forest Reserve
Uganda Sango Bay area
Uganda Budongo Forest Reserve
Uganda Murchison Falls National Park
Uganda Mount Elgon National Park
Congo Ntokou Pikounda Reserve
Congo Lake Télé Community Reserve
Congo Ogooué Leketi National Park
Uganda Bugoma Central Forest Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Forest Subtropical/Tropical Dry suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane major resident
Savanna Dry suitable resident
Altitude 0 - 2600 m Occasional altitudinal limits  

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - Non-trivial Recent
Pets/display animals, horticulture - - International Non-trivial Recent

Recommended citation
BirdLife International (2022) Species factsheet: Bycanistes subcylindricus. Downloaded from http://www.birdlife.org on 04/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 04/12/2022.