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Michio Matsuda ( www.xeno-canto.org )
The Dusky Thrush is characterized by its white head and a relatively large number of black spots. It has a bright white eye stripe. The Dusky Thrush breeds in the Central Asian taiga and is only to be found as a very rare vagrant in Western Europe .
http://en.wikipedia.org/wiki/Turdus_eunomus
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