• 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., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2020	Near Threatened	C1
2018	Near Threatened	C1
2016	Near Threatened	C1
2012	Near Threatened	C1
2008	Near Threatened	C1
2004	Near Threatened
2000	Lower Risk/Near Threatened
1994	Lower Risk/Near Threatened
1988	Lower Risk/Least Concern

Migratory status	full migrant	Forest dependency	does not normally occur in forest
Land-mass type	continent shelf island	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,140,000 km2	medium
Extent of Occurrence (non-breeding)	2,010,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	6000-15000 mature individuals	poor	suspected	2000
Population trend	decreasing	-	suspected	2014-2024
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Generation length	2.8 years	-	-	-

Population justification: The species is thought to have a moderately small population owing to its apparent rarity within its range. National population estimates include: c.100-10,000 breeding pairs, c.50-1,000 individuals on migration and < 50 wintering individuals in China; < 1,000 wintering individuals in Korea; c.100-10,000 breeding pairs, c.50-1,000 individuals on migration and < 50 wintering individuals in Japan and c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Russia (Brazil 2009). Overall, the global population may number c.10,000-19,999 individuals. This equates to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.

Trend justification: The population is suspected to be undergoing a slower decline of <10% owing to on-going habitat destruction.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
China (mainland)	extant	native	yes
Hong Kong (China)	extant	vagrant
Japan	extant	native		yes
Mongolia	extant	native		yes
North Korea	extant	native				yes
Russia	extant	native		yes
Russia (Asian)	extant	native		yes
South Korea	extant	native			yes

Country/Territory	IBA Name
Japan	Hotokenuma, Lake Ogawara and nearby lakes
Japan	Iwakigawa river, Lake Jusanko
Japan	Lake Kasumigaura, Ukisima
Japan	Tonegawa floodplain
Russia (Asian)	Lower Tumen river

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Grassland	Temperate	suitable	non-breeding
Grassland	Temperate	suitable	breeding
Marine Intertidal	Salt Marshes (Emergent Grasses)	major	non-breeding
Wetlands (inland)	Permanent Freshwater Lakes (over 8ha)	suitable	breeding
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	suitable	breeding
Altitude		Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Scale Unknown/Unrecorded	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Scale Unknown/Unrecorded	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance
Climate change & severe weather	Droughts	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Ecosystem conversion
Natural system modifications	Dams & water management/use - Dams (size unknown)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Ecosystem degradation, Ecosystem conversion
Natural system modifications	Fire & fire suppression - Increase in fire frequency/intensity	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Ecosystem degradation, Ecosystem conversion, Species mortality
Natural system modifications	Other ecosystem modifications	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Ochre-rumped Bunting Emberiza yessoensis. Downloaded from https://datazone.birdlife.org/species/factsheet/ochre-rumped-bunting-emberiza-yessoensis 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.