• 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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
C2a(ii)	C2a(i,ii);D	B1ab(iii,v);C2a(i,ii);D1

Red List history

Year	Category	Criteria
2016	Critically Endangered	C2a(ii)
2015	Critically Endangered	C2a(ii)
2013	Critically Endangered	C2a(ii)
2012	Critically Endangered	C2a(ii)
2010	Critically Endangered	C2a(ii)
2009	Critically Endangered	C2a(ii)
2008	Critically Endangered
2004	Critically Endangered
2000	Critically Endangered
1996	Endangered
1994	Endangered
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	19,300 km2	medium
Number of locations	6-10	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	50-249 mature individuals	poor	estimated	2000
Population trend	decreasing	poor	suspected	-
Generation length	7.3 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population at known sites numbers at least eight individuals, but unsurveyed habitat may support hundreds (R. Green in litt. 2002). It is placed in the band 50-249 mature individuals, equating to 75-374 individuals in total, rounded here to 70-400 individuals.

Trend justification: This species is suspected to have declined at an unquantified rate over the last ten years, owing to unauthorised progress on the Telugu-Ganga canal and additional habitat loss and degradation outside Sri Lankamaleswara Wildlife Sanctuary as a result of an unfavourable grazing regime.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
India	extant	native		yes

Country/Territory	IBA Name
India	Sri Lankamalleswara Wildlife Sanctuary
India	Sri Penusila Narasimha Wildlife Sanctuary

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Shrubland	Subtropical/Tropical Dry	major	resident
Altitude		Occasional altitudinal limits

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%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Unintentional effects (species is not 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		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation
Energy production & mining	Mining & quarrying	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Human intrusions & disturbance	Work & other activities	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance

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Recommended citation
BirdLife International (2024) Species factsheet: Jerdon's Courser Rhinoptilus bitorquatus. Downloaded from https://datazone.birdlife.org/species/factsheet/jerdons-courser-rhinoptilus-bitorquatus on 23/11/2024.
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 23/11/2024.