Dusky thrush
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The dusky thrush (''Turdus eunomus'') is a member of the thrush family which breeds eastwards from central
Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive region, geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a ...
to
Kamchatka The Kamchatka Peninsula (russian: полуостров Камчатка, Poluostrov Kamchatka, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and west ...
wintering to Japan, South China and Myanmar. It is closely related to the more southerly breeding Naumann's thrush ''T. naumanni''; 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 organis ...
. The scientific name comes from
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
''Turdus'', "thrush" and
Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...
''eunomos'', "orderly". This species breeds in open woodland areas, but unlike Naumann's thrush, the dusky thrush is more tolerant of mountainous and tundra-edge habitats. This species is strongly migratory, wintering south to southeast Asia, principally in China and neighbouring countries. It is a rare vagrant to western Europe. In December 2016 a sighting of one in the
Derbyshire Derbyshire ( ) is a ceremonial county in the East Midlands, England. It includes much of the Peak District National Park, the southern end of the Pennine range of hills and part of the National Forest. It borders Greater Manchester to the nor ...
in the United Kingdom brought hundreds of birdwatchers to see it.Birdwatchers in Beeley to see 'very rare' dusky thrush December 6, 2016
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'' Retrieved February 19, 2017 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 a ...
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 i ...
. The underwing is reddish brown, and there is a pale . Dusky thrush has a dark brown back and rump; the face, breast, and flank spots rump are black and the belly and undertail are white. Naumann's thrush in comparison has a paler brown back and head; the face, breast, flank spots and rump are reddish, and the belly and undertail are white. The female is fairly similar to the male, but immatures have a weaker patterning. The male dusky thrush has a simple fluted or whistling song, similar to the
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 h ...
. There are suggestions that the songs of dusky and Naumann's thrush differ.


References


External links

* {{Taxonbar, from=Q1591651 dusky thrush dusky thrush Birds of North Asia Birds of Mongolia dusky thrush