Indian Nightjar

About

The Indian Nightjar is a nocturnal bird characterized by its cryptic plumage, large eyes, and a wide gape for catching insects in flight. It is a relatively small nightjar, well-camouflaged to blend with its surroundings during the day, typically resting on the ground or low branches. Its distinctive call is a key identification feature.

Size & lifespan

Length

20-25 cm

Wingspan

45-50 cm

Weight

35-60 g

Lifespan

Approximately 5-7 years in the wild

Diet

Insectivore

Physical characteristics

Plumage

Overall cryptic brown, grey, and buff plumage, heavily mottled and streaked with darker brown and black, providing excellent camouflage. The upperparts are greyish-brown with fine blackish streaks and buff spots. Underparts are buffy-white with fine dark barring. Males typically have prominent white patches on the primaries and white outer tail feathers, while females have smaller or buffier wing patches and less prominent white on the tail.

Beak shape

Small, flattened, and dark greyish-brown beak with a very wide gape, fringed with rictal bristles, adapted for aerial insectivory.

Eye color

Large, dark brown eyes, often appearing black.

Leg color

Short, brownish-pink to reddish-brown legs and feet.

Distinguishing features

Cryptic plumage, large eyes, short legs, and a very wide gape. Males have distinct white patches on the wings and outer tail feathers. Females have buffier wing patches and less white on the tail. The lack of a prominent nuchal collar (found in some other nightjars) is also a distinguishing feature.

Juvenile appearance

Juveniles resemble adult females but are generally paler and more finely barred, with less distinct markings and often lacking the prominent white or buffy wing and tail patches.

Seasonal changes

No significant seasonal changes in plumage. Plumage remains cryptic year-round.

Sexual dimorphism

Males have prominent white patches on the four outermost primary feathers and white tips to the outer two pairs of tail feathers. Females have smaller, buffy-white wing patches and buffy tips to the outer tail feathers, or sometimes no white at all on the tail.

How to identify

1. 1

   Vocalization

   Listen for its characteristic, monotonous, and repetitive 'chuk-chuk-chuk-chuk...' call, especially at dusk and dawn. This is often the easiest way to detect its presence.

2. 2

   Plumage and Camouflage

   Look for its cryptic brown, grey, and buff mottled plumage. During the day, it will be perfectly camouflaged against leaf litter or bark, often appearing as a lump on the ground or a branch. Look for the large, dark eyes.

3. 3

   Flight Pattern

   Observe its silent, moth-like, and erratic flight at dusk or dawn as it hawks for insects. It often flies low to the ground with deep wing beats.

4. 4

   White Wing and Tail Patches (Males)

   In flight, look for prominent white patches on the outer primaries and white tips on the outer tail feathers of males. Females will have smaller, buffier patches or none at all.

5. 5

   Roosting Behavior

   During the day, scan the ground, low branches, or fallen logs in open woodlands and scrub for a motionless, camouflaged bird. They often roost lengthwise on branches, not across them.

Habitat & range

Biomes

Dry deciduous forests, open woodlands, scrublands, thorny bushes, agricultural areas, and even suburban gardens.

Geographic range

Widely distributed across the Indian subcontinent, including India, Sri Lanka, Bangladesh, Pakistan, Nepal, and parts of Southeast Asia (Myanmar, Thailand, Cambodia, Vietnam).

Elevation range

Typically found from sea level up to approximately 1,500 meters (5,000 feet).

Preferred environments

Prefers open, dry habitats with scattered trees, bushes, and bare ground. Often found near human habitation, especially in rural and semi-urban areas with suitable foraging grounds.

Behavior

Activity time

Strictly nocturnal and crepuscular. Active from dusk till dawn, with peak activity shortly after sunset and before sunrise. Spends the day roosting motionless on the ground or on low branches, relying on its camouflage.

Feeding habits

Strictly insectivorous, feeding primarily on moths, beetles, grasshoppers, termites, and other nocturnal insects. It hunts by making short, agile flights from a perch or the ground, or by continuously hawking insects in flight. It uses its wide gape to scoop insects from the air.

Social behavior

Primarily solitary, though sometimes seen in pairs during the breeding season. They are not typically gregarious outside of breeding.

Flight pattern

Silent, buoyant, and erratic flight with deep, moth-like wing beats. Often flies low to the ground, making sudden turns and dives to catch insects.

Migration pattern

Mostly resident throughout its range, but some local movements may occur in response to food availability or seasonal changes. Northern populations may undertake short-distance migrations to warmer areas during winter.

Territoriality

Males establish and defend breeding territories, primarily through vocalizations. They will chase off intruders during the breeding season.

Breeding & reproduction

Breeding season

Typically from February to September, with variations depending on geographic location and monsoon patterns. Peak breeding often occurs from March to May.

Nesting habits

Does not build a nest. Eggs are laid directly on bare ground, often in a slight depression, among leaf litter, or under a bush, relying entirely on camouflage for protection.

Clutch size

2 eggs

Egg description

Usually 2 eggs, elliptical to oval in shape. They are creamy-white to pale buff, heavily mottled and streaked with dark brown, grey, and purplish-brown, blending perfectly with the ground.

Incubation period

Approximately 17-19 days.

Fledging period

Chicks are semi-precocial and can move shortly after hatching. They fledge and become independent around 17-20 days after hatching.

Parental care

Both parents share incubation duties and care for the young. The female typically incubates during the day, and both parents forage for insects to feed the chicks.

Where to find

Field tips

1. Go at the right time. The best time to find Indian Nightjars is at dusk or dawn when they are most active and vocal. They are extremely difficult to spot during the day due to their camouflage.
2. Listen for their call. Their distinctive 'chuk-chuk-chuk' call is the most reliable way to locate them. Once you hear it, try to pinpoint the direction.
3. Use a spotlight (responsibly). At night, a red-filtered spotlight can help locate them as their eyes reflect the light. Use this sparingly and from a distance to avoid disturbing the birds.
4. Scan the ground and low perches. During the day, carefully scan the ground, fallen logs, and low, horizontal branches for a camouflaged bird. They often sit very still.
5. Observe flight patterns. Watch for their characteristic moth-like flight as they hawk for insects against the twilight sky.

Similar species

Quick facts

Activity:

Nocturnal and Crepuscular

Diet:

Insects (moths, beetles, termites)

Nesting:

Ground nester (no nest built)

Call:

Repetitive 'chuk-chuk-chuk' or 'churr-churr-churr'

Camouflage:

Excellent cryptic plumage

Fun facts

• The Indian Nightjar's scientific name 'Caprimulgus' means 'goat-milker', stemming from an ancient myth that nightjars sucked milk from goats, likely due to their habit of foraging in pastures where livestock grazed.
• Their wide gape, fringed with stiff rictal bristles, acts like a net to efficiently catch flying insects in the dark.
• When roosting on a branch, they typically orient themselves lengthwise along the branch, rather than across it, further enhancing their camouflage.
• Despite their widespread presence, they are often overlooked due to their nocturnal habits and superb camouflage.

Scientific classification

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Caprimulgiformes

Family

Caprimulgidae

Genus

Caprimulgus

Species

Caprimulgus asiaticus

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