[order] Passeriformes | [family] Turdidae | [latin] Zoothera sibirica | [UK] Siberian Thrush | [FR] Grive de Sibérie | [DE] Schieferdrossel | [ES] Zorzal de Siberia | [IT] Tordo siberiano | [NL] Siberische Lijster

Siberische Lijster determination

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Close in size to Song Thrush. Rather flat-crowned thrush; adult male mainly dark slate, female and immature buff-brown, mottled and barred below, but in all plumages identifiable by prominent white or pale supercilium and tail-corners, and black- and white-barred underwing.

Breeds in east Palearctic, from upper to lower middle latitudes, mainly in boreal coniferous taiga zone, largely lowland but partly montane. The sparse data suggest preference for dense stands of trees or shrubs, especially spruce and broad-leaved species such as poplars on moist ground in flood plains of rivers or in neighbourhood of water. In winter in India, frequents hill forest up to at least 1800 m.

Breeds in Siberia, also in Sakhalin, northern Japan, and north-east China. Winters in India, south-east Asia, Borneo, and Greater Sunda and Andaman Islands. Vagrant to Britain, France, Belgium, Netherlands, West Germany, Norway, East Germany, Poland, Austria, Hungary, Switzerland, Italy, and Malta.

Omnivorous. It consumes a large variety of insects and invertebrates, in particular earth worms, but also bees. the Siberian thrush is forages on the ground, under dense leaf cover and is rather difficult to observe.

This species has a large range, with an estimated global Extent of Occurrence of 10,000,000 km². The global population size has not been quantified, but the species is not believed to approach the thresholds for the population size criterion of the IUCN Red List (i.e. less than 10,000 mature individuals in conjunction with appropriate decline rates and subpopulation qualifiers), even though the species is described as 'uncommon' in at least parts of its range (Clement and Hathway 2000). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern. [conservation status from birdlife.org]

The nest, is built in a bush at approximately 2 meters above the ground. The nest is composed of grass, leafs and mud. It contains The incubation, tended by male and female, is carried out at the end of June. The young fledge at the beginning of August.

Migratory. Siberian populations migrate south from breeding range in eastern Siberia (or south-west from east of range) across Mongolia and China, mainly east of 100°E, to winter quarters in south-east Asia. Leave breeding grounds from early September but some birds still present until mid-October; arrive India from October. Northward migration from late March, arriving on breeding grounds from late May. European records August-March (mainly October-February) include flocks of 17-18 birds in Poland in January and March and c. 25 birds in Hungary in mid-February.