Binomial name: Saxicola caprata, Carolus Linnaeus, 1766
The pied bush chat (Saxicola caprata) is a small passerine bird found ranging from West Asia and Central Asia to the Indian subcontinent and Southeast Asia. About sixteen subspecies are recognized through its wide range with many island forms. It is a familiar bird of countryside and open scrub or grassland where it is found perched at the top of short thorn trees or other shrubs, looking out for insect prey. They pick up insects mainly from the ground, and were, like other chats, placed in the thrush family Turdidae, but are now considered as Old World flycatchers.
They nest in cavities in stone walls or in holes in an embankment, lining the nest with grass and animal hair. The males are black with white shoulder and vent patches whose extent varies among populations. Females are predominantly brownish while juveniles are speckled.
The pied bush chat is slightly smaller than the Siberian stonechat, Saxicola maurus, although it has a similar dumpy structure and upright stance. The male is black except for a white rump, wing patch and lower belly. The iris is dark brown, the bill and legs black. The female is drab brown and slightly streaked. Juveniles have a scaly appearance on the underside but dark above like the females.
Local names include Kala pidda in Hindi Shyama in Gujarati Kavda gapidda in Marathi Kallu kuruvi in Tamil, Kampa nalanchi in Telugu. The Fore people of New Guinea called it pobogile. They were once popular in Bengal as cage birds. They are still found in the local bird trade of some parts of Southeast Asia.
The pied bush chat is a resident breeder in tropical southern Asia from the Greater Middle East through the Indian subcontinent eastwards to Indonesia. They colonized Papua New Guinea around 1950. It is found in open habitats including scrub, grassland and cultivation.
Some populations are partially migratory. A ringed individual of subspecies rossorum has been recovered from Israel. The populations in India also appear to show seasonal movements but the patterns are unclear. Subspecies bicolor is found in peninsular India in winter. In Karwar on the western coast, it is said to appear in October and stay till May but not seen during the rainy season. Said to be absent in the Baroda district of Gujarat from April to September. Claud Buchanan Ticehurst noted that it was a summer visitor to Baluchistan leaving in October and further that the birds from Baluchistan were indistinguishable from rossorum of Turkestan.
Behaviour and ecology
The breeding season is mainly February to August with a peak in March to June. Males sing from prominent perches. The whistling call is somewhat like that of an Indian robin and has been transcribed as we are tea for two with tea at higher note. The nest is built in a hole in a wall or similar site lined with grass and hair, and 2-5 eggs are laid. Paired males did not reduce their dawn singing behaviour when their mates where trapped and temporarily excluded from the territory. This study suggests that males use dawn chorus to mediate social relationships with neighbouring males to proclaim an established territory. The eggs are small and broadly oval with pale bluish-white or pinkish ground colour and speckles and blotches towards the broad end. They measure about 0.67 by 0.55 inches. Eggs are incubated chiefly by the female for 12 to 13 days.
Brood parasitism by the common cuckoo (race bakeri) has been noted to be common in the Shan State of Burma, with the cuckoo visiting the nest at dusk and removing an egg before quickly laying its own.
The female has dark brown upperparts and rufous underparts and rump. She has no white wing patches. Juveniles are similar to females. Males display during the breeding season by splaying the tail, fluttering and puffing up the white scapular feathers.
This species is insectivorous, and like other chats hunts from a prominent low perch. They have been noted to feed on Pyralid moths and whitefly.
Nematode parasites in the genus Acuaria have been noted. Adult birds have few predators although bats (Megaderma lyra) and wintering Asio flammeus have been noted to prey on them.
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- Saxicola caprata
Saxicola caprata aethiops, Philip Lutley Sclater, 1880
Range: N New Guinea and Bismarck Archipelago.
Saxicola caprata albonotatus, Stresemann, 1912
Range: Found in Sulawesi (except N peninsula) and Salayer I.
Saxicola caprata anderseni, Finn Salomonsen, 1953
Range: Found on Leyte and Mindanao, in the Philippines.
Saxicola caprata atratus, Edward Blyth, 1851
Range: Restricted to Sri Lanka. This has a large bill.
Saxicola caprata belensis, Rand, 1940
Range: WC New Guinea.
Saxicola caprata bicolor, William Henry Sykes, 1832
Range: SE Iran, Afghanistan, Pakistan and N India; migrating to central India and possibly southern India.
Saxicola caprata burmanicus, Edward Charles Stuart Baker, 1922
Range: Found in peninsular India E to Myanmar and S China (S Sichuan, Yunnan), S to Thailand and Indochina. This has the white on the abdomen restricted towards the vent.
Saxicola caprata caprata (nominate), Carolus Linnaeus, 1766
Range: Found in Luzon and Mindoro, in the Philippines
Saxicola caprata cognatus, Ernst Walter Mayr, 1944
Range: Babar Island.
Saxicola caprata francki, Bernhard Rensch, 1931
Range: Is found on the Sumba Islands
Saxicola caprata fruticola, Thomas Horsfield, 1821
Range: Found in Java E to Flores and Alor.
Saxicola caprata nilgiriensis, Hugh Whistler, 1940
Range: Found in the Western Ghats and the Nilgiri Hills.
Saxicola caprata pyrrhonotus, Louis Jean Pierre Vieillot, 1818
Range: Found in the E Lesser Sundas (Wetar, Kisar, Timor, Savu, Roti).
Saxicola caprata randi, Kenneth Carroll Parkes, 1960
Range: Found in the central Philippines (Panay, Negros, Cebu, Bohol, Siquijor).
Saxicola caprata rossorum, Ernst Johann Otto Hartert, 1910
Range: NE Iran SC Kazakhstan S to Afghanistan and Baluchistan; migrant in SW Asia (vagrant in Arabia, Israel). (shows more white below than bicolor, described by Hartert, Jour. f. Orn. 1910:180 but not always recognized)
Saxicola caprata wahgiensis, Ernst Walter Mayr & Ernest Thomas Gilliard, 1951
Range: EC & E New Guinea.
Least Concern (IUCN3.1)