LC
White-thighed Hornbill Bycanistes albotibialis



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 -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 3,170,000
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 Decreasing suspected -
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 largely uncommon (del Hoyo et al. 2001).

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


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Angola N Extant Yes
Benin 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
Equatorial Guinea N Extant Yes
Gabon N Extant Yes
Nigeria N Extant Yes
Sudan N Extant Yes Yes
Uganda N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Benin Ouémé river basin
Congo, The Democratic Republic of the Ngiri
Congo, The Democratic Republic of the Salonga National Park
Congo, The Democratic Republic of the Lomako - Yekokora
Congo, The Democratic Republic of the Mount Hoyo Reserve
Congo, The Democratic Republic of the Okapi Faunal Reserve
Congo, The Democratic Republic of the Virunga National Park
Congo, The Democratic Republic of the Maiko National Park
Congo, The Democratic Republic of the Forests west of Lake Edward
Congo, The Democratic Republic of the Kahuzi-Biega National Park
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 Bangui
Central African Republic Ngotto
Central African Republic Dzanga-Ndoki National Park
Congo Nouabalé-Ndoki National Park complex
Congo Odzala National Park complex
Congo Léfini Faunal Reserve
Congo Dimonika Biosphere Reserve
Congo Conkouati National Park
Cameroon Mbam Djerem National Park
Cameroon Banyang Mbo Wildlife Sanctuary
Cameroon Korup National Park
Cameroon Mont Manengouba
Cameroon Bakossi mountains
Cameroon Mont Nlonako
Cameroon Mount Rata and Rumpi Hills Forest Reserve
Cameroon Mount Kupe
Cameroon Yabassi
Cameroon Mount Cameroon and Mokoko-Onge
Cameroon Mbam Minkom - Kala
Cameroon Dja Faunal Reserve
Cameroon Boumba - Bek
Cameroon Campo Ma'an complex
Cameroon Nki
Cameroon Lobéké National Park
Gabon Gamba Protected Areas Complex
Gabon Lopé Faunal Reserve
Gabon Ipassa Strict Nature Reserve
Gabon Minkébé Forest Reserve
Equatorial Guinea Monte Alen National Park
Equatorial Guinea Nsork Highlands National Park
Nigeria Afi River Forest Reserve
Nigeria Okomu National Park
Nigeria Cross River National Park (Oban Division)
Nigeria Omo Forest Reserve
Nigeria Cross River National Park (Okwangwo Division) and Mbe Mountains
Congo Ntokou Pikounda Reserve
Congo Lake Télé Community Reserve
Uganda Bugoma Central Forest Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations marginal resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 0 - 4054 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2022) Species factsheet: Bycanistes albotibialis. Downloaded from http://www.birdlife.org on 13/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 13/08/2022.