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

Taxonomic note
Ptilopachus nahani (del Hoyo and Collar 2014) was previously placed in the genus Francolinus.

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
-	-	B2ab(ii,iii,v)

Red List history

Year	Category	Criteria
2017	Vulnerable	B2ab(ii,iii,v)
2016	Endangered	B1ab(ii,iii,v)
2012	Endangered	B1ab(ii,iii,v)
2008	Endangered	B1a+b(ii,iii,v)
2005	Endangered
2004	Endangered
2000	Endangered
1996	Data Deficient
1994	Data Deficient
1988	Threatened

Migratory status	not a migrant	Forest dependency	high
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	51,300 km2	medium
Number of locations	6-10	-
Severely fragmented?	yes	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	medium	estimated	2004
Population trend	decreasing	medium	suspected	1998-2008
Generation length	3.9 years	-	-	-
Number of subpopulations	2-100	-	-	-

Population justification: Fuller et al. (2004a, 2004b) estimated a population of 44,038 (95% CI: 32,827-59,079) individuals in Uganda. However, the species's distribution also includes localities in the Democratic Republic of the Congo, the inclusion of which may double the known population size (R. Fuller in litt. 2007), therefore the population is placed in the range 50,000-99,999 individuals.

Trend justification: The species's range is known to be in decline where its status has been inferred through changes in habitat extent in Uganda (Fuller et al. 2004b), and its population is suspected to be in decline owing to habitat destruction and hunting pressure, although the likely rate of decline has not been estimated.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Congo, The Democratic Republic of the	extant	native	yes
Uganda	extant	native	yes

Country/Territory	IBA Name
Congo, The Democratic Republic of the	Mount Hoyo Reserve
Congo, The Democratic Republic of the	Okapi Faunal Reserve
Uganda	Budongo Forest Reserve
Uganda	Bugoma Central Forest Reserve
Uganda	Kibale National Park
Uganda	Mabira Forest Reserve
Uganda	Semliki National Park

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	500 - 1400 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Reduced reproductive success, Species mortality
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation
Human intrusions & disturbance	Work & other activities	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Species disturbance
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Broussonetia papyrifera	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation

Purpose	Scale
Food - human	subsistence, national
Other household goods	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Nahan's Partridge Ptilopachus nahani. Downloaded from https://datazone.birdlife.org/species/factsheet/nahans-partridge-ptilopachus-nahani on 23/12/2024.
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 23/12/2024.