VU
Northern Ground-hornbill Bucorvus abyssinicus



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
- - A2bcd+3bcd+4bcd

Red List history
Year Category Criteria
2018 Vulnerable A2bcd+3bcd+4bcd
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 does not normally occur in forest
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 8,880,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected 1973-2062
Rate of change over the past 10 years/3 generations (longer of the two periods) 30-49% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 30-49% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 30-49% - - -
Generation length 29.8 years - - -

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

Trend justification: Accurate quantification of the rate of decline in this species is very difficult due to the lack of research in the region. In many range states the species has disappeared from areas outside of protected areas, and habitat degradation continues even within some protected areas (F. Dowsett-Lemaire in litt. 2016). Hunting may also impact the species in some places, though in other areas it could be protected as a totem bird (Kemp and Boesman 2017). Taking into account how this species has disappeared from large areas, and how relatively similar threats are impacting its sister species B. leadbeateri, it is very tentatively suspected that declines may fall in the range 30-49% over three generations, although further research is urgently required to get a better estimate of population trends.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Benin extant native yes
Burkina Faso extant native yes
Cameroon extant native yes
Central African Republic extant native yes
Chad extant native yes
Congo, The Democratic Republic of the extant native yes
Côte d'Ivoire extant native yes
Eritrea extant native yes
Ethiopia extant native yes
Gambia extant native yes
Ghana extant native yes
Guinea extant native yes
Guinea-Bissau extant native yes
Kenya extant native yes
Mali extant native yes
Mauritania extant native yes
Niger extant native yes
Nigeria extant native yes
Senegal extant native yes
Sierra Leone extant native yes
Somalia extant native yes
South Sudan extant native yes
Sudan extant native
Togo extant native yes
Uganda extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry suitable resident
Grassland Subtropical/Tropical Dry major resident
Grassland Subtropical/Tropical High Altitude suitable resident
Rocky areas (eg. inland cliffs, mountain peaks) suitable resident
Savanna Dry major resident
Shrubland Subtropical/Tropical Dry major resident
Altitude 0 - 3257 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Scale
Handicrafts, jewellery, etc. subsistence, national
Pets/display animals, horticulture international

Recommended citation
BirdLife International (2024) Species factsheet: Northern Ground-hornbill Bucorvus abyssinicus. Downloaded from https://datazone.birdlife.org/species/factsheet/northern-ground-hornbill-bucorvus-abyssinicus 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.