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White-backed Thrush

From Opus

Photo by Mark Harper in Ruoergai, Sichuan, China
Photo by Mark Harper in Ruoergai, Sichuan, China

Alternative name: Kessler's Thrush; Przevalski's Thrush

Turdus kessleri

Contents

[edit] Identification

With 28cm a large thrush.
Male:

  • Black hood
  • Black wings and tail
  • Pale buff mantle and lower breast
  • Dark chestnut scapulars, rump and belly

Female:

  • Same pattern but duller
  • Dark brown hood and grey mantle
  • Grey breast

Juvenile:

  • Similar to female
  • Heavy white spots on scapulars and mantle
  • Pale streaks on head

[edit] Similar species

The female looks similar to the local race of Eurasian Blackbird (Tibetian Blackbird). Chestnut Thrush has a similar pattern but the hood is not as dark and the mantle is dark chestnut.

[edit] Distribution

Mainly found in the east and northeast of the Tibetian Plateau in China (Qinghai, Gansu, Yunnan, Xizang). Vagrant in winter to the Himalayas of Nepal and Bhutan.

[edit] Taxonomy

Monotypic.

[edit] Habitat

Dwarf bushes (eg rhododendron or juniper) and rocky scrub above the tree-line. Usually found at 3600 - 4500m, descending to 2000m in winter.

[edit] Behaviour

Feeds on insects, worms and berries (autumn), mostly foraging on the ground.
Often seen in flocks or with other thrushes.
Breeding season from May to August. A sociable nester, while females are incubating the males are together in feeding flocks. The nest is a cup, made of gras stems, feathers and hair, placed in a bush or under a rock over streambed. 3 - 4 eggs are laid.
A semi-nomadic species with altitudinal movements in winter, moving down in extreme cold weather.

[edit] References

  1. Del Hoyo, J, A Elliot, and D Christie, eds. 2005. Handbook of the Birds of the World. Volume 10: Cuckoo-Shrikes to Thrushes. Barcelona: Lynx Edicions. ISBN 978-8487334726
  2. Rasmussen, PC and JC Anderton. 2005. Birds of South Asia: The Ripley Guide. Barcelona: Lynx Edicions. ISBN 978-8487334672

[edit] External Links

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