Dusky Thrush

Turdus eunomus

Introduction

The size of a Song Thrush, but with bolder markings, Dusky Thrush is an extremely rare visitor from northern Siberia.

This migratory species winters from north-east India, through China to to Japan.

Key Stats

Status

Very rare

Weight

81.5g

Seasonality

<1%

BTO Records

355 records

Population and distribution stats for:

No data

No current data

No current data

No data

No current data

No current data

Status and Trends

Population size, trends and patterns of distribution based on BTO and partnership surveys and atlasses with data collected by BTO volunteers.

Conservation Status

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This species can be found on the following statutory and conservation listings and schedules.

IUCN Red List of Threatened Species (global)

Least Concern

Schedule 1 Licence required (to disturb)*

Birds Directive Annex 1

* A guide only. Check details with the original legislation, especially those marked with an asterisk. See About Birdfacts for more information.

Population Size

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BOU Category

Source

First Record*

Nottinghamshire, 1905

* First documented occurrence. Most species undoubtedly occurred before this. See About Birdfacts for more information.

Population Change

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Population trends of this scarce species are not routinely monitored.

Distribution

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This vagrant is too rarely reported to map distribution.

Distribution Change

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This vagrant is too rarely reported to map distribution change.

Seasonality

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Dusky Thrush is a very rare vagrant with recent records relating to wintering individuals.

Weekly pattern of occurrence

The graph shows when the species is present in the UK, with taller bars indicating a higher likelihood of encountering the species in appropriate regions and habitats.

Phenology graph — Weekly occurrence patterns (shaded cells and reporting rates (vertical bars) based on BirdTrack data. Reporting rates give the likelihood of encountering the species each week.

Movement

Information about Dusky Thrush movements and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.

Britain & Ireland movement

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View a summary of recoveries in the Online Ringing Report

European movements

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EuroBirdPortal uses birdwatcher's records, such as those logged in BirdTrack to map the flows of birds as they arrive and depart Europe. See maps for this species here.

Biology

Lifecycle and body size information for Dusky Thrush, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.

Survival and Longevity

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Survival is shown as the proportion of birds surviving from one year to the next and is derived from bird ringing data. It can also be used to estimate how long birds typically live.

Classification, names and codes

Taxonomy, names and species codes for Dusky Thrush

Classification and Codes

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Order: Passeriformes
Family: Turdidae
Scientific name: Turdus eunomus
Authority: Temminck, 1820

BTO 5-letter code: DUSTH
Euring code number: 11962

Alternate species names

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Catalan: tord d'ales rosses
Danish: Brundrossel
Dutch: Bruine Lijster
Estonian: rusktiib-rästas
Finnish: ruostesiipirastas
French: Grive à ailes rousses

German: Rostflügeldrossel
Hungarian: rotszárnyú rigó
Icelandic: Brúnþröstur
Italian: Cesena fosca
Latvian: rudsparnu strazds
Lithuanian: duminis strazdas
Norwegian: Svartflekktrost

Polish: drozd rdzawoskrzydly
Portuguese: tordo-de-coleira-preta
Slovak: drozd sibírsky
Spanish: Zorzal eunomo
Swedish: bruntrast
Welsh: Brych Tywyll Asia

More Evidence

More evidence from Conservation Evidence.com

Partners

Birdfacts is based on data collected by volunteers participating in surveys that are organised and funded by BTO, RSPB, Esmée Fairbairn Foundation, JNCC and other partners.

BTO

Esmée Fairbairn Foundation

JNCC

RSPB

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