• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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.
Jones, A. E. 1916. Gyps tenuirostris (Hodgson), the Himalayan Longbilled Vulture, breeding near Ambala, Punjab. Journal of the Bombay Natural History Society 24: 358.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
A2a+4acd; C1	A2a+3cd+4acd; D	A2a+3cd+4acd; C1; D1

Red List history

Year	Category	Criteria
2018	Critically Endangered	A2a+4acd; C1
2017	Critically Endangered	A2a+4acd; C1
2016	Critically Endangered	A2a+4acd; C1
2015	Critically Endangered	A2a+4acd;C1
2013	Critically Endangered	A2a+4acd;C1
2012	Critically Endangered	A2a+4acd;C1
2011	Critically Endangered	A2a,c,d,e; A4a,c,d,e; C1
2008	Endangered	C2a(ii)
2004	Endangered
2000	Endangered
1996	Endangered
1994	Endangered
1988	Threatened

Migratory status	not a migrant	Forest dependency	Does not normally occur in forest
Land mass type	Land-mass type - continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	12,500,000	medium
Extent of Occurrence non-breeding (km2)	47,400,000	medium
Number of locations	11-100	-
Severely Fragmented		-

	Value	Data quality	Derivation	Year of estimate
No. of mature individuals	50-249	good	estimated	2008
Population trend	Decreasing	medium	estimated	-
Decline (3 years/1 generation past)		-	-	-
Decline (5 years/1 generation past)		-	-	-
Decline (10 years/1 generation past)		-	-	-
Decline (10 years/3 generation future)	50-79	-	-	-
Decline (10 years/3 generation past and future)	80-99	-	-	-
Number of subpopulations	6	-	-	-
Percentage in largest subpopulation	1-89	-	-	-
Generation length (yrs)	15.6	-	-	-

Population justification: The species's total population was estimated at c. 300 individuals in 2008, indicating that there are probably fewer than 250 mature individuals remaining, hence the population is placed in the band 50-249 mature individuals.

Trend justification: Population estimates of c.1,260 individuals in 1969 (Dharmakumarsinhji 1971 in Dutta et al. 2010) and c.300 individuals in 2008 (Dutta et al. 2010) suggest that the species has undergone a decline equivalent to c. 82% over 47 years (estimate of three generations), assuming an exponential trend. The results of population viability analysis (Dutta et al. 2010) lend some support to a predicted decline of over 50% during the next 47 years if no additional conservation actions are taken.

Country/Territory	Occurrence status	Presence	Resident	Breeding	Non-breeding	Passage
India	N	Extant	Yes
Pakistan	N	Extant	Yes

Country/Territory	IBA Name
Pakistan	Bijnote Bustard Game Reserve (proposed)
India	Rollapadu Wildlife Sanctuary
India	Nameri National Park
India	Banni Grassland and Chhari Dhand
India	Naliya Grassland (Lala Bustard Wildlife Sanctuary)
India	Ranebennur Blackbuck Sanctuary
India	Jawaharlal Nehru Bustard Sanctuary
India	Ozar and adjoining grassland
India	Ghatigaon Bustard Sanctuary
India	Desert National Park
India	Diyatra Closed Area
India	Khichan
India	Sonkhaliya Closed Area

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Arable Land	marginal	resident
Grassland	Subtropical/Tropical Dry	major	resident
Altitude		Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Scale Unknown/Unrecorded	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
Energy production & mining	Mining & quarrying	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Energy production & mining	Renewable energy	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Rapid Declines		Medium Impact: 6
		Stresses Species disturbance, Ecosystem degradation, Ecosystem conversion, Species mortality
Human intrusions & disturbance	Work & other activities	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Acacia tortilis	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Canis familiaris	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Species disturbance, Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Named species	Timing		Scope		Severity		Impact
		Past, Likely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Prosopis juliflora	Timing		Scope		Severity		Impact
		Past, Likely to Return		Majority (50-90%)		Slow, Significant Declines		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Unspecified species	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species disturbance, Species mortality
Invasive and other problematic species, genes & diseases	Problematic native species/diseases - Corvus splendens	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Reduced reproductive success
Transportation & service corridors	Roads & railroads	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Transportation & service corridors	Utility & service lines	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion, Species mortality

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Food - human	-	-			Non-trivial	Recent
Pets/display animals, horticulture	-	-		International	Non-trivial	Recent
Sport hunting/specimen collecting	-	-			Non-trivial	Recent

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Recommended citation
BirdLife International (2021) Species factsheet: Ardeotis nigriceps. Downloaded from http://www.birdlife.org on 01/12/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 01/12/2021.