LC
Black-and-white-casqued 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 -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 7,210,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend unknown - - -
Generation length 19 years - - -

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 Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Angola extant native yes
Burundi extant native yes
Cameroon extant native yes
Central African Republic extant native yes
Congo extant native yes
Congo, The Democratic Republic of the extant native yes
Côte d'Ivoire extant native yes
Equatorial Guinea extant native yes
Gabon extant native yes
Ghana extant native yes
Guinea-Bissau extant native yes
Kenya extant native yes
Liberia extant native yes
Nigeria extant native yes
Rwanda extant native yes
Sierra Leone extant native yes
South Sudan extant native yes
Sudan extant native yes
Tanzania extant native yes
Togo extant native yes
Uganda extant native yes

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

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

Recommended citation
BirdLife International (2024) Species factsheet: Black-and-white-casqued Hornbill Bycanistes subcylindricus. Downloaded from https://datazone.birdlife.org/species/factsheet/black-and-white-casqued-hornbill-bycanistes-subcylindricus on 23/12/2024.
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 23/12/2024.