Indian Courser

Indian Courser
Indian Courser
From Keoladeo National Park, Rajasthan, India.
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Glareolidae
Genus: Cursorius
Species: C. coromandelicus
Binomial name
Cursorius coromandelicus
(Gmelin, 1789)

The Indian Courser (Cursorius coromandelicus) is a species of courser found in mainland South Asia, mainly in the plains bounded by the Ganges and Indus river system. Like other coursers it is a ground bird found in dry open semi-desert country.

Contents

Description

This courser is widespread in South Asia and overlaps with some other species such as the similar looking Cream-coloured Courser. This species is however brighter coloured than the Cream-coloured Courser and has a broader black eye-stripe that begins at the base of the beak. The crown is chestnut and the breast is rufous. The nape has a dark black patch where the long longer feathers forming the white stripe meet.[2] In flight, the rump appears white and the wing tip is not as contrastingly black as in the Cream-coloured Courser. The sexes are alike.[3][4]

The long legs are whitish and as in other coursers have only three forward pointing toes.[2]

The species is closely related to other coursers in the region and are considered to form a superspecies with Cursorius cursor, Cursorius rufus and Cursorius temminckii.

Distribution and habitat

This species occurs in dry stony, scrubby or rocky country but rarely on sandy terrain[5] from the Indus valley east short of Bangladesh and south to the tip of Peninsular India. It sometimes occurs in the dry zone of northern Sri Lanka. The wet forest zones are avoided. In southern India, the drier zone on the east coast, the Coromandel region, where it is not uncommon[6] gives it the species name. It is also found patchily distributed in other parts of the peninsula.[7][8] Other areas where they are commonly seen include the Deccan plateau and the desert region of northwestern India in Rajasthan.[9] It is resident in some areas but makes local movements.[10][11]

Behaviour and ecology

These birds are usually seen in small flocks. They feed on insects mainly beetles, crickets and grasshoppers picked up from the ground in stubbly or uncultivated fields. They run in spurts on the ground but take to flight with a hoarse creaky gwaat call.[3] The flight is strong with rapid wing beats.[12] They fly low and begin to run after landing.[2][13][14]

They breed mainly from March to August. Records exist from mid May in southern India and Sri Lanka and mid April in Darbhanga.[8] A breeding record in Deccan from December is known.[15] They nest in a scrape on bare stony ground laying 2 or 3 speckled and well-camouflaged eggs that are very spherical.[16] The chicks are protectively coloured and on alarm crouch and remain immobile making them extremely difficult to spot.[12] Adults do not call or display when the nest or chicks are approached.[17] The chicks are able to move upon hatching but are initially fed by the parents and begin to forage on their own after a week.[13][18][19]

References

  1. ^ BirdLife International (2008). Cursorius coromandelicus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 12 May 2006.
  2. ^ a b c Whistler, Hugh (1949). Popular handbook of Indian birds. Edition 4. Gurney and Jackson. pp. 452–491. http://www.archive.org/stream/popularhandbooko033226mbp#page/n501/mode/2up/search/courser. 
  3. ^ a b Rasmussen PC & JC Anderton (2005). Birds of South Asia: The Ripley Guide. Volume 2. Smithsonian Institution & Lynx Edicions. p. 184. 
  4. ^ Sharpe, R Bowdler (1896). Catalogue of the birds in the British Museum. Volume 24. British Museum, London. pp. 39–40. http://www.archive.org/stream/catalogueofbirds24brit#page/39/mode/1up/. 
  5. ^ Baker, ECS (1929). The Fauna of British India, Including Ceylon and Burma. Birds Volume 6 (2 ed.). Taylor and Francis, London. pp. 86–87. http://www.archive.org/stream/BakerFbiBirds6/BakerFBI6#page/n121/mode/1up/. 
  6. ^ Santharam,V (1996). "Comments on some new bird records from Tamil Nadu". J. Bombay Nat. Hist. Soc. 93 (3): 589–590. 
  7. ^ Worth,C Brooke (1953). "Additional Mysore State bird records". J. Bombay Nat. Hist. Soc. 51 (2): 510. 
  8. ^ a b Inglis,CM (1913). "Breeding of the Indian Courser Cursorius coromandelicus in the Darbhanga District". J. Bombay Nat. Hist. Soc. 22 (3): 631. 
  9. ^ Jerdon, TC (1864). The Birds of India. Volume 3. George Wyman & Co., Calcutta. pp. 626–627. http://www.archive.org/stream/birdsofindiabein03jerd#page/626/mode/2up/search/cursorius. 
  10. ^ Balachandran,S (1994). "Some interesting bird records from Kaliveli Lake near Pondicherry". J. Bombay Nat. Hist. Soc. 91 (2): 317–318. 
  11. ^ Butler,EA (1876). "Notes on the avi-fauna of Mount Aboo and Northern Guzerat". Stray Feathers 4 (1–3): 1–41. http://www.archive.org/stream/strayfeathersjou41876hume#page/10/mode/1up/. 
  12. ^ a b Phillips,WWA (1942). "Some observations on the nesting habits of the Indian Courser, Cursorius coromandelicus [Gmelin]". J. Bombay Nat. Hist. Soc. 43 (2): 200–205. 
  13. ^ a b Ali, Salim (1996). The Book of Indian Birds (12 ed.). BNHS & Oxford University Press. p. 155. 
  14. ^ Stairmand DA (1971). "The Indian Courser". Newsletter for Birdwatchers 11 (3): 3–4. http://www.archive.org/stream/NLBW11#page/n41/mode/2up. 
  15. ^ Bharos, A. M. K. Sahu, M. (2002). "Breeding by the Indian courser Cursorius coromandelicus in winter in Raipur, Chhattisgarh, India". J. Bombay Nat. Hist. Soc. 99 (2): 299–300. 
  16. ^ Oates, Eugene W (1902). Catalogue of the collection of birds' eggs in the British Museum. Volume 2. British Museum. p. 75. http://www.archive.org/stream/catalogueofcolle02britrich#page/75/mode/1up/. 
  17. ^ Ali, S & S D Ripley (1981). Handbook of the birds of India and Pakistan. Volume 3 (2 ed.). Oxford University Press. pp. 9–11. 
  18. ^ Thomas, Gavin H.; Freckleton, Robert P.; Székely, Tamás (2006). "Comparative analyses of the influence of developmental mode on phenotypic diversification rates in shorebirds". Proceedings of the Royal Society B: Biological Sciences 273 (1594): 1619–24. doi:10.1098/rspb.2006.3488. PMC 1634920. PMID 16769632. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1634920. 
  19. ^ Hume, AO (1890). The nests and eggs of Indian birds. Volume 3 (2 ed.). R H Porter. pp. 323–325. http://www.archive.org/stream/cu31924000044994#page/n343/mode/1up. 

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