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Dusky Thrush

From Opus

Disambiguation: this page is for the split version of Dusky Thrush. Subspecies naumanni is now found in Naumann's Thrush

MalePhoto © by letsbefrankTonboike Park, Kishiwada, Japan, 24 January 2016
Photo © by letsbefrank
Tonboike Park, Kishiwada, Japan, 24 January 2016
Turdus eunomus


[edit] Identification

Female or immature malePhoto © by Joseph MorlanNiijuku, Tonosho, Katori District, Chiba Prefecture, Japan, 11 February 2019
Female or immature male
Photo © by Joseph Morlan
Niijuku, Tonosho, Katori District, Chiba Prefecture, Japan, 11 February 2019

23–25 cm (9-9¾ in)

  • Dark brown upperside with some black spots and an obvious rufous wing panel and rump
  • Obvious pale supercilium and throat
  • malar area pale in male but more contrasting dark and pale in female (not all individuals can be reliably sexed)
  • Underside white with dark spots producing a band across upper breast and down flanks
  • Underwing almost entirely buffy-rufous

Females are similar but have a less contrasting dull gray back and crown.

[edit] Similar Species

Will remind a European observer of a Redwing, but is larger, has stronger bill, longer tail, darker crown and auriculars, and rufous wing panel, while lacking the reddish flanks.

[edit] Distribution

Found in summer in northern Asia, mainly Siberia; winters to Japan, Korea, southern China and Myanmar. Generally, Dusky Thrush occurs more northerly then Naumann's Thrush.

Dusky Thrush has occurred as vagrant in Europe and Britain.

[edit] Taxonomy

This is a monotypic species1.

Dusky Thrush has recently been split from Naumann’s Thrush Turdus naumanni. Hybrids do occur and are not too rare around Beijing3.

[edit] Habitat

Breeds in coniferous and broad-leaf forest and scrub.

[edit] Behaviour

[edit] Breeding

They nest in trees at about 5 meters above ground. The clutch consists of 3-5 eggs which are laid in a loose cup nest formed from grass, twigs and moss held together with mud.

[edit] Diet

The diet consists of insect larvae, locusts, beetles and seeds.

[edit] Vocalisation

Voice is very similar to Naumann's Thrush

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from
  2. Knox, A.G. et al. 2008. Taxonomic recommendations for British birds: Fifth report. Ibis, 150, 833–835
  3. Thread in Id Forum; see especially posts 5 and 6
  4. Beaman, M., S. Madge, K.M. Olsen. 1998. Fuglene i Europa, Nordafrika og Mellemøsten. Copenhagen, Denmark: Gads Forlag, ISBN 87-12-02276-4
  5. Collar, N. & de Juana, E. (2019). Dusky Thrush (Turdus eunomus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 27 March 2019).
  6. Brazil, M. (2018). Birds of Japan. Helm, London. ISBN 978-1-4729-1386-9
  7. Clement, P. & Hathway, R. (2000) Thrushes. Princeton Univ. Press, Princeton.

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