Naumann's thrush (''Turdus naumanni'') is a species of the

thrush Thrush may refer to: Birds * Thrush (bird), any of the birds in the family Turdidae ** List of thrush species * Antthrushes, the Formicariidae family of birds * Dohrn's warbler, or Dohrn's thrush-babbler, a species ''Sylvia dohrni'' in the famil ...

family Turdidae which breeds eastwards from central

Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...

to North

Manchuria Manchuria is a historical region in northeast Asia encompassing the entirety of present-day northeast China and parts of the modern-day Russian Far East south of the Uda (Khabarovsk Krai), Uda River and the Tukuringra-Dzhagdy Ranges. The exact ...

Amurland Outer Manchuria, sometimes called Russian Manchuria, refers to a region in Northeast Asia that is now part of the Russian Far East but historically formed part of Manchuria (until the mid-19th century). While Manchuria now more normatively refer ...

and

Sakhalin Sakhalin ( rus, Сахали́н, p=səxɐˈlʲin) is an island in Northeast Asia. Its north coast lies off the southeastern coast of Khabarovsk Krai in Russia, while its southern tip lies north of the Japanese island of Hokkaido. An islan ...

. It is closely related to the more northerly breeding dusky thrush ''T. eunomus''; the two have often been regarded as

conspecific Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organism ...

. This species breeds in open woodland areas; dusky thrush, as would be expected, is more tolerant of mountainous and tundra-edge habitats. This species is strongly migratory, wintering

South Asia South Asia is the southern Subregion#Asia, subregion of Asia that is defined in both geographical and Ethnicity, ethnic-Culture, cultural terms. South Asia, with a population of 2.04 billion, contains a quarter (25%) of the world's populatio ...

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

, principally in China, Korea and neighboring countries. It is a rare vagrant to western Europe. It nests in trees, laying 3-5

egg An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the ...

s in an untidy but neatly lined nest. Migrating birds and wintering birds often form small flocks. It is omnivorous, eating a wide range of insects, especially mosquitoes, earthworms and berries. This is a medium-sized but stocky thrush, reminiscent in structure of a small

fieldfare The fieldfare (''Turdus pilaris'') is a member of the thrush family Turdidae. It breeds in woodland and scrub in northern Europe and across the Palearctic. It is strongly migratory, with many northern birds moving south during the winter. It ...

. The underwing is reddish brown, and there is a pale

supercilium The supercilium is a plumage feature found on the heads of some bird species. It is a stripe which runs from the base of the bird's beak above its eye, finishing somewhere towards the rear of the bird's head.Dunn and Alderfer (2006), p. 10 Also k ...

. Naumann's thrush has pale brown back and head. The face, breast, flank spots and rump are reddish, and the belly and undertail are white, whereas dusky thrush has a darker brown back and rump, and the face, breast, and flank spots rump are black. The belly and undertail are white. The female is fairly similar to the male, but immatures have a weaker patterning. The song of Naumann's thrush may differ from the simple fluted or whistling

redwing The redwing (''Turdus iliacus'') is a bird in the thrush family, Turdidae, native to Europe and the Palearctic, slightly smaller than the related song thrush. Taxonomy and systematics This species was first described by Carl Linnaeus in his 1 ...

-like song of dusky thrush. The genus name comes from

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

''Turdus'', "thrush", and the species and English names commemorate the German naturalist

Johann Andreas Naumann Johann Andreas Naumann (13 April 1744 – 15 May 1826) was a German farmer and an amateur naturalist. He was the father of Johann Friedrich Naumann and geologist Georg Amadeus Carl Friedrich Naumann. He wrote an important book on the birds of Germ ...

References

External links

1905 Public domain image from a field guide
{{Taxonbar, from=Q843175 Naumann's thrush Birds of North Asia Naumann's thrush