20-4-2024 BANDHAVGARH, INDIA - BLACK DRONGO (Dicrurus macrocercus)

The Black drongo (Dicrurus macrocercus) is a small Asian passerine bird The species is known for its aggressive behavior towards much larger birds that invade its territory. The Black drongo has been introduced to some Pacific islands, where it has thrived and become abundant to the point of threatening and causing the extinction of native and endemic bird species there.

Black drongos are glossy black birds with a wide fork to the tail. Adults usually have a small white spot at the base of the gape. The iris is dark brown (not crimson as in the similar ashy drongo). The sexes cannot be told apart in the field. Juveniles are brownish and may have some white barring or speckling towards the belly and vent, and can be mistaken for the white-bellied drongo. First-year birds have white tips to the feathers of the belly, while second-years have these white-tipped feathers restricted to the vent. Black drongos fly with strong flaps of the wing and are capable of fast maneuvers that enable them to capture flying insects. With short legs, they sit upright on thorny bushes, bare perches, or electricity wires. They may also perch on grazing animals.

Black drongos are found as summer visitors to northeastern Afghanistan and northern Pakistan but are residents from the Indus Valley until Bangladesh and into India and Sri Lanka. Some populations make seasonal movements that are poorly understood; populations in Korea are known to be migratory. Black drongos inhabit open habitats such as savannas, shrublands, grasslands, fields, and urban areas.

Black drongos become active very early at dawn and roost later than many other birds. They feed late in the evening or night, often on insects attracted to artificial lights. Black drongos can often be seen sitting upright on thorny bushes, bare perches, or electricity wires. They may also perch on grazing animals. They usually perch and hunt close to the ground. Black drongos are mostly aerial predators of insects but also glean from the ground or off vegetation. They sometimes fly close to tree branches, attempting to disturb any insects that may be present. They congregate in fields being ploughed, picking up exposed caterpillars and beetle grubs. As many as 35 birds have been seen at such congregations. They are also attracted to fires in scrub and grasslands habitats where insects are disturbed. Black drongos often associate with Common mynas, Cattle egrets, and other birds that share a similar diet and habitat. Drongos benefit from this association and are more successful in their foraging. It is said that they imitate the call of the shikra so as to put mynas to flight and then steal prey. Black drongos are aggressive and fearless birds and will attack much larger species that enter their nesting territory, including crows and even birds of prey. This behavior led to their former name of “king crow”. Black drongos have a wide range of calls but their most common call is a two-note ‘tee-hee’ call.

 

20-4-2024 BANDHAVGARH, INDIA - BLACK DRONGO (Dicrurus macrocercus)

The Black drongo (Dicrurus macrocercus) is a small Asian passerine bird. The species is known for its aggressive behavior towards much larger birds that invade its territory. The Black drongo has been introduced to some Pacific islands, where it has thrived and become abundant to the point of threatening and causing the extinction of native and endemic bird species there.

Parasitic bird lice, Pectinopygus makundi, have been described from little cormorant hosts. Endoparasitic helminths, Hymenolepis childi and Dilepis lepidocolpos have been described from Sri Lankan birds while others like Neocotylotretus udaipurensis and Syncuaria buckleyi have been described from Indian birds.

Black drongos are glossy black birds with a wide fork to the tail. Adults usually have a small white spot at the base of the gape. The iris is dark brown (not crimson as in the similar ashy drongo). The sexes cannot be told apart in the field. Juveniles are brownish and may have some white barring or speckling towards the belly and vent, and can be mistaken for the white-bellied drongo. First-year birds have white tips to the feathers of the belly, while second-years have these white-tipped feathers restricted to the vent. Black drongos fly with strong flaps of the wing and are capable of fast maneuvers that enable them to capture flying insects. With short legs, they sit upright on thorny bushes, bare perches, or electricity wires. They may also perch on grazing animals.

21-4-2024 BANDHAVGARH, INDIA - BLACK DRONGO (Dicrurus macrocercus)

The Black drongo (Dicrurus macrocercus) is a small Asian passerine bird The species is known for its aggressive behavior towards much larger birds that invade its territory. The Black drongo has been introduced to some Pacific islands, where it has thrived and become abundant to the point of threatening and causing the extinction of native and endemic bird species there.

Black drongos are glossy black birds with a wide fork to the tail. Adults usually have a small white spot at the base of the gape. The iris is dark brown (not crimson as in the similar ashy drongo). The sexes cannot be told apart in the field. Juveniles are brownish and may have some white barring or speckling towards the belly and vent, and can be mistaken for the white-bellied drongo. First-year birds have white tips to the feathers of the belly, while second-years have these white-tipped feathers restricted to the vent. Black drongos fly with strong flaps of the wing and are capable of fast maneuvers that enable them to capture flying insects. With short legs, they sit upright on thorny bushes, bare perches, or electricity wires. They may also perch on grazing animals.

14-3-2020 CHANGARAM WETLANDS KERALA, INDIA - BLACK DRONGO (Dicrurus macrocercus)

The black drongo (Dicrurus macrocercus) is a small Asian passerine bird of the drongo family Dicruridae. It is a common resident breeder in much of tropical southern Asia from southwest Iran through Pakistan, India, Bangladesh and Sri Lanka east to southern China and Indonesia and accidental visitor of Japan. It is an all black bird with a distinctive forked tail and measures 28 cm (11 in) in length. It feeds on insects, and is common in open agricultural areas and light forest throughout its range, perching conspicuously on a bare perch or along power or telephone lines.

The species is known for its aggressive behaviour towards much larger birds, such as crows, never hesitating to dive-bomb any bird of prey that invades its territory. This behaviour earns it the informal name of king crow. Smaller birds often nest in the well-guarded vicinity of a nesting black drongo. Previously grouped along with the African fork-tailed drongo (Dicrurus adsimilis), the Asian forms are now treated as a separate species with several distinct populations.

12-3-2020 KERALA, INDIA - BLACK DRONGO (Dicrurus macrocercus)

This bird is glossy black with a wide fork to the tail. Adults usually have a small white spot at the base of the gape. The iris is dark brown (not crimson as in the similar ashy drongo). The sexes cannot be told apart in the field. Juveniles are brownish and may have some white barring or speckling towards the belly and vent, and can be mistaken for the white-bellied drongo. First-year birds have white tips to the feathers of the belly, while second-years have these white-tipped feathers restricted to the vent.

They are aggressive and fearless birds, and although only 28 cm (11 in) in length, they will attack much larger species that enter their nesting territory, including crows and birds of prey. This behaviour led to their former name of king crow. They fly with strong flaps of the wing and are capable of fast manoeuvres that enable them to capture flying insects. With short legs, they sit upright on thorny bushes, bare perches or electricity wires. They may also perch on grazing animals.

They are capable of producing a wide range of calls but a common call is a two note tee-hee call resembling that of the shikra (Accipiter badius).

19-11-2016 THA YET MIO, MYANMAR - BLACK DRONGO (Dicrurus macrocercus)

The black drongo is found predominantly in open country and usually perches and hunts close to the ground. They are mostly aerial predators of insects but also glean from the ground or off vegetation. They are found as summer visitors to northeastern Afghanistan and northern Pakistan but are residents from the Indus Valley until Bangladesh and into India and Sri Lanka. Some populations show seasonal movements that are poorly understood while populations in Korea are known to be migratory. The black drongo can be found in savanna, fields, and urban habitats.

Black drongos were introduced just before the Second World War from Taiwan to the island of Rota to help in the control of insects. It is believed that they dispersed over the sea to the island of Guam in the 1950s. By 1967, they were the fourth most commonly seen birds in roadside counts on Guam and are today the most abundant bird there. Predation by and competition from black drongos have been suggested as factors in the decline of endemic bird species such as the Rota bridled white-eye and the Guam flycatcher.

23-11-2016 INLE LAKE, MYANMAR - BLACK DRONGO (Dicrurus macrocercus)

Black drongos become active very early at dawn and roost later than many other birds. They feed mainly on insects such as grasshoppers, cicadas, termites, wasps, bees, ants, moths, beetles and dragonflies. They sometimes fly close to tree branches, attempting to disturb any insects that may be present. They congregate in fields being ploughed, picking up exposed caterpillars and beetle grubs. As many as 35 birds have been seen at such congregations. They are also attracted to fires in scrub and grasslands habitats where insects are disturbed. They appear to avoid flies. They associate with common mynas, cattle egrets and other birds that share a similar diet and habitat. Drongos benefit from this association and are more successful in their foraging. There is only partial overlap in the insect prey sought by mynas and drongos although in rare instances the drongos may rob prey from mynas. It is said that they imitate the call of the shikra so as to put mynas to flight and then to steal prey. Similar behaviour, using false alarm calls, has been noted in the fork-tailed drongo. There are some cases of the black drongo preying on small birds, reptiles, or maybe even bats. It has been suggested that they may feed on birds more intensively on migration. An individual on a migratory stop-over island in Korea caught several birds one after the other, killing them by striking at the back of the head and neck and feeding selectively on parts, especially the brain. They have also been on occasion seen feeding on fish. Flowers of trees such as Erythrina and Bombax may be visited for water and nectar] and they are sometimes known to feed on grains. They are only rarely known to take larger arthropods such as scorpions and centipedes. They feed on milkweed butterflies that are often avoided by other predators and are known to feed late in the evening or night, often on insects attracted to artificial lights.

23-11-2016 INLE LAKE, MYANMAR - BLACK DRONGO (Dicrurus macrocercus)

Black drongos breed mainly in February and March in southern India, and until August in other parts of the country. Males and females sing in the mornings during the breeding season. Courtship can include aerobatic chases and they may lock their wings and beaks together, with the pair sometimes falling to the ground. Displays may be made on the ground. Pair bonds are retained for a whole breeding season. The nest is a cup made with a thin layer of sticks placed in the fork of branch, and is built in a week by both the male and female. Eggs are laid close to the first rains in April. The usual clutch is three or rarely four eggs laid in a cup nest placed in the fork of an outer branch of tree. Large leafy trees such as the jackfruit are preferred. The eggs are pale cream to red with spots and markings and are 26 mm (1.0 in) long and 19 mm (0.75 in) wide. The eggs are incubated by both parents and hatch after 14 to 15 days. Nestlings are brooded for the first five days, after which the young are capable of maintaining a fairly constant body temperature. A second clutch may be laid if the first is destroyed. Nests are sometimes built in telephone poles. A nesting territory of 0.003 to 0.012 km2 (0.3 to 1.2 hectares) is maintained.