• 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. 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.

Red List criteria met

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

Red List history

Year	Category	Criteria
2016	Vulnerable	B1ab(ii,iii,iv,v)
2012	Vulnerable	B1ab(ii,iii,iv,v)
2008	Vulnerable	B1a+b(ii,iii,iv,v)
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

Migratory status	nomadic	Forest dependency	medium
Land-mass type	shelf island	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	595,000 km2	medium
Number of locations	6-15	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	1500-7000 mature individuals	medium	estimated	1999
Population trend	decreasing	poor	suspected	2006-2026
Rate of change over the past 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	10-19%	-	-	-
Generation length	6.6 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: A population estimate of 2,500-9,999 individuals has been derived from analysis of records and surveys in BirdLife International (2001). This equates to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals.

Trend justification: The species is suspected to be in decline owing to the on-going loss and degradation of its forest habitat, combined with hunting pressure.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Brunei	extant	native
Indonesia	extant	native		yes
Malaysia	extant	native		yes
Philippines	extant	native		yes

Country/Territory	IBA Name
Brunei	Seria Coast
Indonesia	Gunung Awu
Indonesia	Karakelang Utara
Indonesia	Pasoso
Indonesia	Pegunungan Tokalekaju
Indonesia	Pulau Kabaruan
Indonesia	Pulau Salibabu
Malaysia	Mantanani islands
Malaysia	Similajau National Park
Malaysia	Sipadan islands
Philippines	Balabac Island
Philippines	Calauit Island
Philippines	Mount Dajo National Park
Philippines	Sibutu and Tumindao Islands
Philippines	Tawi-tawi Island
Philippines	Ursula Island

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	non-breeding
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude		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		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%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Canis familiaris	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species mortality

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Recommended citation
BirdLife International (2024) Species factsheet: Grey Imperial-pigeon Ducula pickeringii. Downloaded from https://datazone.birdlife.org/species/factsheet/grey-imperial-pigeon-ducula-pickeringii 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.