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Nahan's Partridge Ptilopachus nahani

IUCN Red List Criteria

Critically Endangered  
Endangered B1ab(ii,iii,v) 
Vulnerable B1ab(ii,iii,v) 

IUCN Red List history

Year Category
2012 Endangered
2008 Endangered
2005 Endangered
2004 Endangered
2000 Endangered
1996 Data Deficient
1994 Data Deficient
1988 Threatened

Species attributes

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

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,700 medium
Number of locations 6-10 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals medium Estimated 2004
Population trend Decreasing medium -
Number of subpopulations 2-100 - - -
Largest subpopulation 1001-10000 - - -
Generation length (yrs) 3.9 - - -
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 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 distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Congo, The Democratic Republic of the Native Extant       Yes
Uganda Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

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

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 500 - 1400 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 Majority (50-90%) Slow, Significant Decline 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 Decline 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 Decline 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 Decline 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 / Paper Mulberry (Broussonetia papyfera) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent
Food (human) Whole Eggs Wild Subsistence, National Non-trivial Recent
Handicrafts, jewellery, decorations, curios Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Ptilopachus nahani. Downloaded from http://www.birdlife.org on 28/11/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/11/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Endangered
Family Odontophoridae (New World quails)
Species name author Dubois, 1905
Population size mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 1,700 km2
Country endemic? No
Links to further information
- Summary information on this species
- Projected distributions under climate change