Chestnut-tailed starling

The chestnut-tailed starling or grey-headed starling or grey-headed myna (Sturnia malabarica[2][3][4]) is a member of the starling family. It is a resident or partially migratory species found in wooded habitats in India and Southeast Asia. The species name is after the distribution of a former subspecies in the Malabar region. While the chestnut-tailed starling is a winter visitor to peninsular India, the closely related resident breeding population with a white head is now treated as a full species, the Malabar starling (Sturnia blythii).

Chestnut-tailed starling
Sturnia m. malabarica from Satchari National Park, Bangladesh
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Sturnidae
Genus: Sturnia
Species:
S. malabarica
Binomial name
Sturnia malabarica
(Gmelin, 1789)
     approximate range
Synonyms

Temenuchus malabaricus

Taxonomy and distribution

The lack of monophyly in the earlier starling genera has led to this species being placed variously under genus Sturnia, Sturnus and Temenuchus in the past (Zuccon et al., 2006) and studies have suggested the reuse of an old name Temenuchus for members of this clade.[3] Later studies have suggested placement in the genus Sturnia.[2]

There are two subspecies of the chestnut-tailed starling:

Both the nominate subspecies and nemoricola are known to perform some poorly understood movements (e.g., S. m. malabarica has been recorded from Pakistan and in central and southern India).

The taxon blythii is now usually (e.g. Rasmussen & Anderton, 2005) considered a valid species, the Malabar starling or white-headed myna (Sturnia blythii), instead of a subspecies of Sturnia malabarica. As S. m. malabarica only visits the range of blythii during the non-breeding period (winter), the two are not known to interbreed. However, a molecular study found the genetic divergence between S. blythii not significantly greater (between 0.2% and 0.8%) than between the sisters S. m. malabarica of northern India and S. m. nemoricola of Burma and Vietnam.[2]

Description
An adult on twig

The adults have a total length of approximately 20 cm (7.9 in). They have grey upperparts and blackish remiges, but the colour of the remaining plumage depends on the subspecies. In the nominate subspecies and blythii, the underparts (incl. undertail) are rufous, but in nemoricola the underparts are whitish tinged rufous, especially on the flanks and crissum (the undertail coverts surrounding the cloaca). The nominate and nemoricola have a light grey head with whitish streaking (especially on crown and collar region). Both subspecies have white irises and a yellow bill with a pale blue base. The sexes are similar, but juveniles have whitish underparts and just chestnut tips to the tail feathers.

Behaviour

The chestnut-tailed starling's nest is typically found in open woodland and cultivation. The chestnut-tailed starling builds a nest in an old barbet or woodpecker hole in a tree-trunk, 3–12 m (9.8–39.4 ft) up. The normal clutch is 3-5 eggs, pale blue, unmarked. The nesting season is usually March to June.[4]

Like most starlings, the chestnut-tailed starling is fairly omnivorous, eating fruit, nectar and insects. They fly in tight flocks and often rapidly change directions with great synchrony.

Notes
  1. BirdLife International (2004). "Sturnus malabaricus". IUCN Red List of Threatened Species. 2004. Retrieved 12 May 2006.CS1 maint: ref=harv (link)
  2. Zuccon, D., Pasquet, E. & Ericson, P. G. P. (2008). Phylogenetic relationships among Palearctic–Oriental starlings and mynas (genera Sturnus and Acridotheres : Sturnidae). Zoologica Scripta, 37:469–481 PDF
  3. Lovette, I.; McCleery, B.; Talaba, A. & Rubenstein, D. (2008). "A complete species-level molecular phylogeny for the "Eurasian" starlings (Sturnidae: Sturnus, Acridotheres, and allies): Recent diversification in a highly social and dispersive avian group" (PDF). Molecular Phylogenetics & Evolution. 47 (1): 251–260. doi:10.1016/j.ympev.2008.01.020. PMID 18321732. Archived from the original (PDF) on February 5, 2009.
  4. Ali, Salim (2012). The Book of Indian Birds. Revised by J.C. Daniel (13th ed.). Oxford University Press. p. 218. ISBN 0195665236.

References
  • Grimmett, Richard; Inskipp, Carol, Inskipp, Tim & Byers, Clive (1999): Birds of India, Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka, and the Maldives. Princeton University Press, Princeton, N.J.. ISBN 0-691-04910-6
  • Rasmussen, Pamela C. & Anderton John C. (2005): Birds of South Asia: The Ripley Guide. Smithsonian Institution and Lynx Edicions. ISBN 84-87334-67-9
  • Zuccon D, Cibois A, Pasquet E, Ericson PG. (2006) Nuclear and mitochondrial sequence data reveal the major lineages of starlings, mynas and related taxa. Mol Phylogenet Evol. 41(2):333-44.
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