• 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(i)	A2cd+3cd+4cd; C2a(i); D1

Red List history

Year	Category	Criteria
2016	Endangered	C2a(i)
2013	Endangered	C2a(i)
2012	Endangered	C2a(i)
2010	Endangered	C2a(i)
2008	Endangered	C2a(i)
2006	Endangered
2004	Endangered
2000	Endangered
1996	Critically Endangered
1994	Critically Endangered
1988	Threatened

Migratory status	full migrant	Forest dependency	high
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,180,000 km2	medium
Number of locations	11-100	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	250-999 mature individuals	poor	estimated	2005
Population trend	decreasing	poor	suspected	2006-2026
Rate of change over the past 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Generation length	6.7 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: Brazil (2009) has estimated the population in China at fewer than 100 breeding pairs. The global population is estimated at c.250-999 mature individuals (BirdLife International 2001; M. Crosby in litt. 2005). This estimate equates to 375-1,499 individuals in total, rounded here to 350-1,500 individuals. Recent records confirm the species occurs in a wider range than previously thought, and the global population size could be shown to be larger (He Fenqi in litt. 2016), but it is tentatively retained in the current range (J. Kushlan in litt. 2016).

Trend justification: This species's population is presumed to be experiencing a rapid decline owing to hunting and the clearance and fragmentation of forest, primarily owing to demands for timber or agricultural land and damming of some sites for stream regulation.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
China (mainland)	extant	native	yes
Vietnam	extant	native	yes

Country/Territory	IBA Name
China (mainland)	Chebaling Nature Reserve
China (mainland)	Damingshan
China (mainland)	Dayao Shan Nature Reserve
China (mainland)	Houhe Nature Reserve
China (mainland)	Huashui Shan
China (mainland)	Jianfengling
China (mainland)	Jiangkou Xiang-Mashi Zhen
China (mainland)	Jiulianshan Nature Reserve
China (mainland)	Longhushan
China (mainland)	Pingnan Dapeng
China (mainland)	Qiandao Hu Reservoir
China (mainland)	Shennongjia Nature Reserve
China (mainland)	Wuyi Shan Nature Reserve (Fujian)
China (mainland)	Xianhu Reservoir
Vietnam	Ban Thi - Xuan Lac

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	breeding
Forest	Subtropical/Tropical Moist Lowland	major	non-breeding
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	major	breeding
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	major	non-breeding
Altitude		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%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation
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%)		Rapid Declines		Medium Impact: 7
		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, Reduced reproductive success
Natural system modifications	Dams & water management/use - Dams (size unknown)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Pollution	Agricultural & forestry effluents - Herbicides and pesticides	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Ecosystem degradation
Pollution	Agricultural & forestry effluents - Soil erosion, sedimentation	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation
Transportation & service corridors	Roads & railroads	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion

Purpose	Scale
Food - human	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: White-eared Night Heron Oroanassa magnifica. Downloaded from https://datazone.birdlife.org/species/factsheet/white-eared-night-heron-oroanassa-magnifica 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.