Indian Roller | Beautiful bird

Indian Roller | Beautiful bird

Indian Roller | Beautiful bird

Introduction


A brightly colored bird with various shades of blue on the wings, tails, and belly that are often more prominent in flight. Note the longitudinal white streaks on the throat and breast. Indochinese Roller has a purple-blue breast, a darker olive back, and is generally darker blue. Generally silent, but more vocal in breeding season with harsh calls. Prefers open areas, including agricultural landscapes, sitting on exposed perches including electric wires, occasionally pumping its tail slowly. Practically a resident roller with some movements in the western parts of its range.

Habitat

Indian rollers are distributed across Asia, from Iraq and the United Arab Emirates in south-western Asia through the Indian Subcontinent, including Sri Lanka, Lakshadweep islands, and the Maldive Islands. The main habitat of these birds
includes cultivated areas, thin forest, and grassland. They can also be found in parks and cities.

Geography

CONTINENTS
Asia
SUBCONTINENTS
Western Asia, South Asia
COUNTRIES
Afghanistan, Bangladesh, Bhutan, India, Iran, Iraq, Nepal, Oman, Pakistan, Sri Lanka, United Arab Emirates, Kuwait, Saudi Arabia, Maldives, Syria, Turkey, Qatar

Lifestyle

Indian rollers are generally solitary birds that are often seen perched on prominent bare trees or wires. After waking up, they spend a few minutes preening followed by flying around their roosting sites. Favored perches include electric or telegraphic wires but they also perch in trees and shrubs. Indian rollers perch mostly at a height of 3-9 m height from where they forage for ground insects. They may also use taller perches and obtain insects from the upper canopy of trees. During summer, Indian rollers may feed late in the evening and make use of artificial lights and feed on insects attracted to them. These birds communicate with each other using a harsh crow-like 'chack' sound. They also make a variety of other sounds, including metallic 'boink' calls and are especially vociferous during the breeding season.

Diet & Nutrition

Indian rollers are carnivores. Their diet includes insects, spiders, scorpions, small snakes, frogs, and other amphibians.

Description

The Indian Roller is a stocky bird about 26-27cm long and can only be confused within its range with the migratory European Roller.

Males and females are not readily distinguishable. The breast is brownish unlike as in the European Roller. The crown and vent are blue. In flight the primaries (longest wing feathers) and secondaries (shorter, upper "arm" feathers) show bright shades of blue.

Three Substance Usually Recognized

  • The nominate form is found from West Asia (Iraq, Arabia) to Bangladesh and north of the Vindhyas ranges.
    • The subspecies indicus is found in peninsular India and Sri Lanka.
    • The race affinis of northeastern India and Southeast Asia (Thailand, Yunnan, Indochina) is sometimes considered a full species, but within the Indian region, it is seen to intergrade with benghalensis. nan, Yunnan), and S to peninsular Thailand and Indochina. The form affinis is darker, larger and has a purplish brown and unstreaked face and breast.

FEEDING

These birds are usually seen perched on prominent bare trees or wires. They descend to the ground to capture their prey which may include insects, arachnids, small reptiles (including Calotes versicolor and small snakes) and amphibians. Fires attract them and they will also follow tractors for disturbed invertebrates (= animals without internal skeleton, such as insects, larvae, earthworms, millipedes, snails, spiders). In agricultural habitats in southern India, they have been found at densities of about 50 birds per sq. km. They perch mainly on 3—10 metre perches and feed mostly on ground insects. Nearly 50% of their prey was beetles and 25% made up by Grasshoppers and crickets.

During summer, they may also feed late in the evening and make use of artificial lights and feed on insects attracted to them. They are attracted to swarms of winged termites and as many as 40 birds have been seen to perch on a 70 metre stretch of electric wires. They are often attracted to road kills.

Nominate Species

BREEDING / NESTING

The breeding season is March to June, slightly earlier in southern India.

The display of this bird is a lapwing-like display, with the twists and turns that give this species its English name. Displays when perched include bill-up displays, bowing, allopreening, wing drooping and tail fanning

It nests in a lined hole in a tree or building, and lays about 3-5 eggs. Holes created by woodpeckers or wood boring insects in palms are favoured in some areas.

 

SONG / CALL

The call of Indian Roller is a harsh crow-like chack sound. Also makes a variety of other sounds including a metallic boink calls. Especially vociferous during the breeding season.

 

Indian RollerBEHAVIOUR AND ECOLOGY

The display of this bird is an aerobatic display, with the twists and turns that give this species its English name.

They bathe in open water by plunge-diving into it, a behaviour that was once interpreted as fishing.

Blood parasites Leucocytozoon of the family Plasmodiidae have been noted as also parasitic helminth worms Hadjelia truncata and Synhimantus spiralis.

 

IN CULTURE

Being very common in the populated plains of India it is associated with legends. A local name is neelakant (meaning "blue throat"), a name associated with the deity Shiva (who drank poison resulting in the blue throat).

During former times, a captive roller would be released by the local ruler during festivals such as Dussera.

The Indian roller has been chosen as the state bird for the Indian states of Bihar, Karnataka, Orissa and Andhra Pradesh.

Indian Roller


 

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