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

Taxonomic note
Goura scheepmakeri and G. sclaterii (del Hoyo and Collar 2014) were previously lumped as G. scheepmakeri following Sibley and Monroe (1990, 1993).

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)

Red List history

Year	Category	Criteria
2021	Vulnerable	C2a(ii)
2016	Vulnerable	C1+2a(ii)
2014	Vulnerable	C2a(i)
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	74,800 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2500-9999 mature individuals	poor	estimated	2016
Population trend	decreasing	poor	inferred	1994-2022
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	9.33 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: Although this species occurs at relatively high population densities in alluvial forest, it is less common in foothill forest (I. Woxvold pers. comm. 2016). It has been found to still be fairly common in the Lakekamu Basin (Beehler et al. 1994, B. Beehler in litt. 2012), where the population has been estimated at 30-150 breeding pairs, and it remains relatively common and widespread in the lower Purari catchment (I. Woxvold pers. comm. 2016), but there are few recent records outside the Lakekamu Basin (eBird 2021, Bruxaux et al. 2018).

In 1994, the population size was suspected to be greater than 5,000 individuals, in a single subpopulation (Toone et al. 1994). In 2016, the species was precautionarily estimated to number fewer than 10,000 mature individuals based on an assessment of its known AOO, habitat preferences and its detection rate during fieldwork including camera-trapping (I. Woxvold pers. comm. 2016). The population size is therefore placed in the band 2,500 - 9,999 mature individuals.

Trend justification: On-going hunting pressure and capture for trade are inferred to be driving a continuing population decline in this species, based on its apparent absence from areas close to habitation (Beehler et al. 1995). Additionally, slow forest loss may be contributing to declines. From 2001-2019, approximately 2.4% of forest with at least 50% canopy cover was lost from the species's range (Global Forest Watch 2021). Over three generations (28 years), this rate would equate to a loss of 3-4%.

The species's range is centred on Gulf Province in which 1.5% of forest was lost plus 6.2% logged between 2002 and 2014 (Bryan and Shearman 2015). This is an increasing rate of logging compared to 6% forest loss and 13% logged between 1972 and 2002 (Shearman et al. 2009). Given the species' preference for alluvial forest which is targeted for logging, and additional localised impacts of hunting, its rate of decline is precautionarily assessed as 10-19% over three generations (28 years).

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

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Swamp	major	resident
Altitude	0 - 800 m	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
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Whole (>90%)		Slow, Significant Declines		Medium Impact: 7
		Stresses Species disturbance, 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

Purpose	Scale
Food - human	subsistence, national
Handicrafts, jewellery, etc.	subsistence, national
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Scheepmaker's Crowned-pigeon Goura scheepmakeri. Downloaded from https://datazone.birdlife.org/species/factsheet/scheepmakers-crowned-pigeon-goura-scheepmakeri on 22/12/2024.
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 22/12/2024.