Black-casqued Hornbill (Ceratogymna atrata) - BirdLife species factsheet

Black-casqued Hornbill Ceratogymna atrata

Current view: Data table and detailed info

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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

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)	5,280,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	15.8 years	-	-	-

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

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and fragmentation and hunting (del Hoyo et al. 2001).

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Angola	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	extant	native	yes
Liberia	extant	native	yes
Nigeria	extant	native	yes
Sierra Leone	extant	native	yes
South Sudan	extant	native	yes
Sudan	extant	native	yes
Togo	extant	native	yes
Uganda	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Angola	Camabatela
Angola	Luachimo River (Chitato)
Angola	Maiombe
Cameroon	Bakossi mountains
Cameroon	Banyang Mbo Wildlife Sanctuary
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
Cameroon	Mbam Minkom - Kala
Cameroon	Mont Nlonako
Cameroon	Mount Cameroon and Mokoko-Onge
Cameroon	Mount Kupe
Cameroon	Mount Rata and Rumpi Hills Forest Reserve
Cameroon	Nki
Cameroon	Yabassi
Central African Republic	Bamingui-Bangoran National Park complex
Central African Republic	Bangui
Central African Republic	Dzanga-Ndoki National Park
Central African Republic	Ngotto
Congo	Conkouati National Park
Congo	Dimonika Biosphere Reserve
Congo	Lake Télé Community Reserve
Congo	Lower Kouilou basin
Congo	Nouabalé-Ndoki National Park complex
Congo	Ntokou Pikounda Reserve
Congo	Odzala National Park complex
Congo, The Democratic Republic of the	Itombwe Mountains
Congo, The Democratic Republic of the	Kahuzi-Biega National Park
Congo, The Democratic Republic of the	Lomako - Yekokora
Congo, The Democratic Republic of the	Luki Forest Reserve
Congo, The Democratic Republic of the	Maiko National Park
Congo, The Democratic Republic of the	Mount Hoyo Reserve
Congo, The Democratic Republic of the	Ngiri
Congo, The Democratic Republic of the	Okapi Faunal Reserve
Congo, The Democratic Republic of the	Salonga National Park
Congo, The Democratic Republic of the	Virunga National Park
Côte d'Ivoire	Bossematie Forest Reserve
Côte d'Ivoire	Gueoule and Glo Mountain Forest Reserves
Côte d'Ivoire	Mabi Forest reserve
Côte d'Ivoire	Marahoue National Park
Côte d'Ivoire	Mopri Forest Reserve
Côte d'Ivoire	Mount Nimba Strict Nature Reserve
Côte d'Ivoire	Parc National de Taï et Réserve de faune du N'Zo
Côte d'Ivoire	Peko Mountain National Park
Côte d'Ivoire	Sangbe Mountain National Park
Côte d'Ivoire	Yapo and Mambo Forest Reserves
Equatorial Guinea	Monte Alen National Park
Equatorial Guinea	Nsork Highlands National Park
Gabon	Akanda
Gabon	Gamba Protected Areas Complex
Gabon	Ipassa Strict Nature Reserve
Gabon	Lopé Faunal Reserve
Gabon	Minkébé Forest Reserve
Gabon	Ogooué delta and Mandji island
Ghana	Ankasa Resource Reserve - Nini-Sushien National Park
Ghana	Bia National Park and Resource Reserve
Ghana	Cape Three Points Forest Reserve
Ghana	Draw River Forest Reserve
Ghana	Ebi River Shelterbelt Forest Reserve
Ghana	Jema-Asemkrom Forest Reserve
Ghana	Kakum National Park - Assin Attandaso Resource Reserve
Ghana	Mamiri Forest Reserve
Ghana	Pra-Sushien Forest Reserve
Ghana	Subri River Forest Reserve
Ghana	Tano-Nimiri Forest Reserve
Ghana	Yoyo River Forest Reserve
Guinea	Diécké
Guinea	Massif du Ziama
Liberia	Cestos - Senkwen
Liberia	Grebo
Liberia	Lofa-Gola-Mano Complex
Liberia	Nimba mountains
Liberia	Sapo
Liberia	Zwedru
Nigeria	Cross River National Park (Oban Division)
Nigeria	Okomu National Park
Nigeria	Omo Forest Reserve
Nigeria	Upper Orashi forests
Sierra Leone	Gola Forests
Sierra Leone	Kambui Hills Forest Reserve
Sierra Leone	Kangari Hills Non-hunting Forest Reserve
Sierra Leone	Loma Mountains Non-hunting Forest Reserve
South Sudan	Bengangai
Togo	Misahöhe Forest Reserve
Uganda	Semliki National Park

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	0 - 1500 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Black-casqued Hornbill Ceratogymna atrata. Downloaded from https://datazone.birdlife.org/species/factsheet/black-casqued-hornbill-ceratogymna-atrata on 22/11/2024.
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 22/11/2024.