Kori Bustard Ardeotis kori


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 Near Threatened A2bcd+3bcd+4bcd
2013 Near Threatened A2bcd+3bcd+4bcd
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 -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 8,800,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate 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) 25-29 - - -
Decline (10 years/3 generation past and future) 25-29 - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 15.6 - - -

Population justification: The global population size has not been quantified, but the species is reported to be still common where undisturbed (del Hoyo et al. 1996). The population in South Africa has been estimated at 2,000-5,000 birds (Barnes 2000).

Trend justification: Senyatso et al. (2012) found that the Extent of Occurrence contracted by 21% in East Africa and 8% in southern Africa since the late 19th century, and there was extensive qualitative evidence for an overall population decline, with considerable pre- and post-1970 population declines in all range states except Zambia and Angola, as well as ongoing changes in the internal characteristics of this species’s range, at least since the early 20th century. In Tanzania, encounter rates dropped considerably since the 1970s outside of national parks in areas such as the Kilimanjaro plains, Lolkisale and Monduli plains, Arusha Chini, Loliondo (N. Cordeiro in litt. 2013). In the South African Karoo the species experiences high levels of mortality owing to collisions with power lines, and collision rates in Namibia are also thought to be extremely high. Estimates of 534 (95% CI 139-931) birds killed annually in the Karoo alone (rising to 721 [95% CI 188-1,256] birds when adjusted for observer search bias) are worryingly high given that the total South African population has been estimated at just 2,000-5,000 birds (Shaw 2013). Although comparison of road census data in the Karoo from the 1980s and 2000s did not find evidence of a decline, it is possible that the area is acting as a population sink for this locally nomadic species (J. Shaw in litt. 2013). Overall trends are hard to piece together, but given the qualitative evidence for range-wide declines, it seems reasonable to suspect that the species is undergoing ongoing declines of 25-29% in 47 years (three generations).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Angola N Extant Yes
Botswana N Extant Yes
Eswatini N Possibly Extinct Yes
Ethiopia N Extant Yes
Kenya N Extant Yes
Mozambique N Extant Yes
Namibia N Extant Yes
Somalia N Extant Yes
South Africa N Extant Yes
South Sudan N Extant Yes
Sudan N Extant Yes
Tanzania N Extant Yes
Uganda N Extant Yes
Zambia N Extant Yes
Zimbabwe N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
South Africa Mapungubwe
Kenya Lolldaiga-Mugogodo-Ewaso N'yiro
Kenya Nairobi National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land marginal non-breeding
Artificial/Terrestrial Pastureland marginal non-breeding
Desert Hot suitable resident
Forest Subtropical/Tropical Dry marginal non-breeding
Grassland Subtropical/Tropical Dry major resident
Savanna Dry major resident
Shrubland Subtropical/Tropical Dry major resident
Altitude 0 - 2000 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
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
Species mortality
Transportation & service corridors Utility & service lines Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Species mortality

Recommended citation
BirdLife International (2021) Species factsheet: Ardeotis kori. Downloaded from http://www.birdlife.org on 26/01/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/01/2021.