The eyebrowed thrush (Turdus obscurus) is a member of the thrush family Turdidae. It breeds in dense coniferous forest and taiga eastwards from Siberia and MongoliatoJapan. It is strongly migratory, wintering south to China and Southeast Asia. It is a rare vagrant to western Europe.
The eyebrowed thrush was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the thrushes in the genusTurdus and coined the binomial nameTurdus obscurus.[2][3] The scientific name comes from LatinTurdus meaning "thrush" and obscurus meaning "dark" or "dusky".[4] Gmelin based his account on the "Dark thrush" that had been described in 1783 by the English ornithologist John Latham in his multi-volume work A General Synopsis of Birds. Latham noted that "This is Sibirian species and found in the woods beyond Lake Baikal" but did not explain the source of his information.[5] The species is monotypic: no subspecies are recognised.[6]
This is an attractive thrush, with a grey back and head, the latter having a black eyeline, bordered white above and below. The breast and flanks are orange, and the belly white. The sexes are fairly similar, but immatures have a browner back.
The male has a simple whistling song, similar to the related mistle thrush.
It nests in trees, laying 4-6 eggs in a neat nest. Migrating birds and wintering birds often form small flocks. It is omnivorous, eating a wide range of insects, earthworms and berries.
In 2011, an eyebrowed thrush was sighted in Australia, near MalandainQueensland.[8] This is possibly the first confirmed sighting of the species on the Australian mainland.
^Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2023). "Thrushes". IOC World Bird List Version 13.2. International Ornithologists' Union. Retrieved 15 August 2023.
