Variable wheatear

The variable wheatear (Oenanthe picata) is a species of bird in the family Muscicapidae. It is found in Afghanistan, Egypt, India, Iran, Kazakhstan, Lebanon, Nepal, Oman, Pakistan, Russia, Tajikistan, Turkmenistan, the United Arab Emirates, and Uzbekistan.

Variable wheatear
Male O. p. picata
Male O. p. capistrata
Both Jawai, Rajasthan, India
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Muscicapidae
Genus: Oenanthe
Species:
O. picata
Binomial name
Oenanthe picata
(Blyth, 1847)

Its natural habitat is hot deserts.

Description
O. p. opistholeuca

The variable wheatear is a bird of arid and semi-arid region, and is locally abundant in barren rocky areas, sand dunes with scrub vegetation, cultivation, ravines, outside villages and nomadic encampments.[2]

It is polymorphic and has three distinct morphs.

  1. Black-bellied phase ('opistholeuca'). Male (adult). Entirely jet black except rump, under tail-coverts, base and sides of tail which are white; central rectrices and terminal band of tail black. Female has black parts replaced by sooty black.
  2. White-bellied phase ('picata') Male (adult). Like the preceding but belly white. Female similar to male but black parts replaced by grayish brown; belly more buffish.
  3. White-crowned phase ('capistrata'). Male (adult). Like picata, with white belly and black throat, but crown and nape white. Female similar to male but black parts and crown earthy brown; belly more buffish.

The geographical dominance of the three types of females does not exactly correspond to the dominances of the three color phases of the males, but in their wintering grounds there is some corresponding separation. [3]

Distribution and habitat

This species is found in northeast and southeast Iran and Turkmenistan eastern to western Tien Shan, Pamirs, and northern and western Pakistan; non-breeding in southwest Asia.[4] Common and generally distributed in winter in Pakistan and northwestern India southeast to Delhi, central Madhya Pradesh and northern Maharashtra (Khandesh). Arrives on breeding grounds in March (Baluchistan) or mid April (Chitral), remains till September. May be seen in winter quarters from the beginning of August (Karachi dist) till the end of March.[3]

In winter frequents stony semi-desert, and desert with sparsely scrubbed sand dunes, cultivation, ravines, outskirts of villages and nomadic encampments, cattle corrals, etc.; usually from almost sea level to c. 1200 m, but has been observed also at 2700 m in deep snow.[3]

References
  1. BirdLife International (2012). "Oenanthe picata". IUCN Red List of Threatened Species. 2012. Retrieved 26 November 2013.CS1 maint: ref=harv (link)
  2. Sanjay Thakur; Rajiv Pandit & Anil Mahabal (2015). "First record of Variable Wheatear Oenanthe picata (Aves: Passeriformes: Muscicapidae) from Osmanabad District and range extension to southeastern Maharashtra, India". Journal of Threatened Taxa. 7 (3): 7042–7043. doi:10.11609/jott.o4265.7042-3.
  3. Salim Ali & S Dillon Ripley (1998). Handbook of the birds of India and Pakistan. 9 (2nd ed.). Oxford University Press. pp. 51–53.
  4. Collar, N. (2016). Variable Wheatear (Oenanthe picata). 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 http://www.hbw.com/node/58542 on 31 July 2016)


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