Dusky Thrush Turdus eunomus


Taxonomic note
Turdus naumanni and T. eunomus (del Hoyo and Collar 2016) were previously lumped as T. naumanni following AERC TAC (2003), AOU (1998 & supplements), Cramp et al. (1977-1994) and Sibley & Monroe (1990, 1993).

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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
Species attributes

Migratory status full migrant Forest dependency Low
Land mass type Average mass 78 g

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 8,730,000
Extent of Occurrence non-breeding (km2) 6,640,000
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Unknown not applicable -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 6.1 - - -

Population justification: The global population size has not been quantified, but the species is described as common (del Hoyo et al. 2005).

Trend justification: The population trend is difficult to determine because of uncertainty over the impacts of habitat modification on population sizes.

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Austria V Extant
Bangladesh N Extant Yes
Belarus V Extant
Belgium V Extant
Bhutan N Extant Yes
Canada V Extant
China (mainland) N Extant Yes
Croatia V Extant
Cyprus V Extant
Czechia V Extant
Denmark V Extant
Faroe Islands (to Denmark) V Extant
Finland V Extant
France V Extant
Germany V Extant
Hong Kong (China) N Extant Yes
Hungary V Extant
India N Extant Yes
Israel V Extant
Italy V Extant
Japan N Extant Yes
Kuwait V Extant Yes
Montenegro V Extant
Myanmar N Extant Yes
Nepal N Extant Yes
Netherlands V Extant
Northern Mariana Islands (to USA) V Extant
Norway V Extant
Oman V Extant
Pakistan N Extant
Philippines V Extant
Poland V Extant
Russia N Extant Yes Yes
Russia (Asian) N Extant Yes
Russia (Central Asian) N Extant Yes Yes
Saudi Arabia V Extant
Serbia V Extant
Slovenia V Extant
South Korea N Extant Yes
Taiwan, China N Extant Yes
Thailand N Extant Yes
United Arab Emirates V Extant
United Kingdom V Extant
USA V Extant
Vietnam N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable non-breeding
Artificial/Terrestrial Plantations suitable non-breeding
Artificial/Terrestrial Rural Gardens suitable non-breeding
Forest Boreal suitable breeding
Forest Temperate suitable resident
Grassland Temperate suitable resident
Grassland Tundra marginal breeding
Rocky areas (eg. inland cliffs, mountain peaks) suitable resident
Shrubland Boreal suitable breeding
Shrubland Temperate suitable resident
Altitude 0 - 3000 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2023) Species factsheet: Turdus eunomus. Downloaded from on 04/02/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 04/02/2023.