LC
White's Thrush Zoothera aurea



Taxonomy

Taxonomic note
The subspecies neilgherriensis has been moved from Z. aurea into Z. dauma, following song analysis that showed it to belong with the latter species (Weir 2018).

Previously, Zoothera dauma (Sibley and Monroe [1990, 1993]) and Z. imbricata (Collar [2004]) were lumped together into Z. dauma and subsequently split into Z. dauma, Z. major and Z. aurea following del Hoyo and Collar (2016).

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.
Handbook of the Birds of the World and BirdLife International. 2019. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 4. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v4_Dec19.zip.

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

Red List history
Year Category Criteria
2019 Least Concern
Species attributes

Migratory status full migrant Forest dependency Medium
Land mass type Average mass 104 g
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 42,900,000 medium
Extent of Occurrence non-breeding (km2) 16,700,000 medium
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 Decreasing suspected -
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 - - -

Population justification: The global population size has not been quantified. The species is variously described as uncommon to fairly common across much of its range (Clement and Hathway 2000). In Europe, the breeding population is estimated to number 25,000-100,000 breeding pairs, equating to 75,000-300,000 individuals (BirdLife International 2004), but Europe forms <5% of the global range.

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and degradation, although it is increasing in Europe (BirdLife International 2015).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Austria V Extant
Bangladesh N Extant
Belgium V Extant
Bhutan N Extant
Cambodia N Extant Yes
China (mainland) N Extant Yes
Denmark V Extant
Faroe Islands (to Denmark) V Extant
Finland V Extant
France V Extant
Germany V Extant
Iceland V Extant
Indonesia N Extant Yes
Ireland V Extant
Italy V Extant
Japan N Extant Yes Yes
Kazakhstan N Extant Yes
Laos N Extant Yes
Malaysia V Extant
Mongolia N Extant Yes
Montenegro V Extant
Myanmar N Extant Yes
Nepal N Extant
Netherlands V Extant
Norway V Extant
Oman V Extant Yes
Pakistan N Extant
Philippines N Extant Yes
Poland V Extant
Romania V Extant
Russia N Extant Yes
Russia (Asian) N Extant Yes
Russia (Central Asian) N Extant Yes
Russia (European) N Extant Yes
Serbia V Extant
Slovenia V Extant
South Korea N Extant Yes
Spain V Extant
Sri Lanka N Extant Yes
Sweden V Extant
Taiwan, China N Extant Yes
Thailand N Extant Yes
United Kingdom 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 Plantations suitable non-breeding
Artificial/Terrestrial Rural Gardens suitable non-breeding
Forest Boreal major breeding
Forest Subtropical/Tropical Moist Lowland suitable breeding
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Subtropical/Tropical Moist Montane suitable breeding
Forest Subtropical/Tropical Moist Montane suitable non-breeding
Forest Temperate suitable breeding
Shrubland Boreal suitable breeding
Altitude 0 - 3600 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - Non-trivial Recent
Pets/display animals, horticulture - - Non-trivial Recent

Recommended citation
BirdLife International (2021) Species factsheet: Zoothera aurea. Downloaded from http://www.birdlife.org on 18/10/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/10/2021.