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

Taxonomic note
Tetrao urogalloides (del Hoyo and Collar 2014) was previously listed as T. parvirostris; the name urogalloides has priority.

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
-	-	-

Red List history

Year	Category	Criteria
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	9,680,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	6.4 years	-	-	-

Population justification: The global population size has not been quantified, but the species is reported to be formerly very common (del Hoyo et al. 1994). Brazil (2009) has estimated national population sizes at <c.100 breeding pairs in China and c.100,000-1 million breeding pairs in Russia.

Trend justification: The population is suspected to have declined owing to over-hunting. However population declines may also be caused by natural fluctuations (del Hoyo et al. 1994).

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

Country/Territory	IBA Name
Mongolia	Gorkhi-Terelj National Park
Mongolia	Khan Khentii Strictly Protected Area
Mongolia	Khangain Nuruu National Park
Russia (Asian)	Dal'dzi lake
Russia (Asian)	Evoron-Chukchagirskoye depression
Russia (Asian)	Forty Islands
Russia (Asian)	Lowland swamps in the valley of Tungur and Nenyuga rivers
Russia (Asian)	Malkachan bay
Russia (Asian)	Mukhtel' lake
Russia (Asian)	Muna-Besyuke
Russia (Asian)	Northern slope of Khamar-Daban mountains
Russia (Asian)	Tunkin valley
Russia (Asian)	Udyl' lake
Russia (Asian)	Zevskoye plateau

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Boreal	suitable	resident
Forest	Temperate	suitable	resident
Shrubland	Temperate	suitable	resident
Altitude		Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Unknown		Unknown
		Stresses Indirect ecosystem effects, Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Black-billed Capercaillie Tetrao urogalloides. Downloaded from https://datazone.birdlife.org/species/factsheet/black-billed-capercaillie-tetrao-urogalloides 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.