Reptiles Active at night

Common Krait

Bungarus caeruleus

iNaturalist Wikipedia

The Common Krait is a master of the midnight shadows, a glossy black predator known for its stealth and potent venom. While shy by day, this elusive snake is a fascinating subject for nocturnal wildlife monitoring across South Asia.

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0 Habitats

Quick Identification

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Size

90 to 120 cm (3 to 4 feet) on average, with exceptionally large individuals reaching 175 cm (5 feet 9 inches).

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Colors

Glossy black, deep steel blue, or dark chocolate brown with thin, white crossbands that often appear in pairs and become more prominent toward the tail.

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Key Features

Distinctive enlarged hexagonal scales running along the spine
Narrow white crossbands on a dark, highly glossy body
Small, dark eyes with round pupils and a blunt snout
Cylindrical body shape with a short, tapering tail

When You’ll See Them

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Activity pattern Active at night

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Peak hours 9 PM - 3 AM

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Season June-September (Monsoon season)

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Diet Mainly ophiophagous, specializing in preying on other snakes (including other kraits). It also consumes lizards, frogs, and small mammals like rats and mice.

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Habitat Agricultural fields, scrub forests, and low-lying grasslands; frequently found near human dwellings, gardens, and outbuildings.

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Where Does the Common Krait Live?

The Common Krait is native to the South Asian subcontinent, where it maintains a massive and stable population. Its core range spans the entirety of India—from the Himalayan foothills to the southern plains—as well as Pakistan, Sri Lanka, Bangladesh, and Nepal. While it is primarily a lowland specialist, it is remarkably adaptable to various environments, provided there is enough moisture and a steady supply of prey.

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5 Countries

4.5M km² Range

Least Concern Conservation

IN India Pakistan Bangladesh Sri Lanka Nepal

Elevation range

0 m1,000 m2,000 m4,000 m

Sea level – 1,700 m

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iNaturalist / Verified observation data

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Behavior

Known as one of the 'Big Four' venomous snakes of South Asia, the Common Krait is notoriously shy and lethargic during the day. It spends its daylight hours concealed in termite mounds, rodent burrows, or under thick leaf litter to avoid the heat. When disturbed during the day, it is remarkably docile, often coiling its body and hiding its head to avoid confrontation.

However, the Common Krait undergoes a dramatic personality shift at night. As a strictly nocturnal hunter, it becomes alert, agile, and significantly more dangerous. It is known to wander into human settlements and even enter homes in search of warmth or prey, making it a significant medical concern in rural and suburban areas. Despite its potent venom, it is not naturally aggressive and typically only bites when stepped on or provoked in the darkness.

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Camera Tips

To capture the Common Krait on a backyard camera, placement is everything. These snakes are 'edge hunters,' meaning they prefer to travel along vertical landmarks. Position your camera just 10-15 cm (4-6 inches) off the ground, angled along the base of a garden wall, a woodpile, or the foundation of a shed. They rarely cross wide-open spaces, so focusing on these linear corridors is your best bet for a clear shot.

Because the Common Krait is strictly nocturnal, your camera’s infrared capabilities are critical. Use a 'No-Glow' or 'Black IR' flash to ensure you don't startle the snake, which might cause it to flee the frame. Set your camera to a high-sensitivity motion trigger and use a short video mode (10-15 seconds). Their movement is often slow and rhythmic, so a video clip captures their unique undulating gait much better than a single still photo.

Safety is paramount when working in Krait territory. Never attempt to use food lures to attract them, as this creates a safety hazard for you and your neighbors. Instead, place cameras near natural attractants like damp areas that host frogs or known rodent paths. When checking your SD cards, always wear sturdy boots and use a long stick to inspect the area around the camera before reaching down, as Kraits are masters of camouflaging themselves in leaf litter and debris.

Similar Species

Species that look similar or are commonly confused with Common Krait.

Common Wolf Snake

A harmless mimic that lacks the enlarged hexagonal dorsal scales and has a flatter, more pointed head compared to the Krait.

Banded Krait

Easily distinguished by its much larger size, bright yellow and black bands, and a distinctively triangular body cross-section.

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Frequently Asked Questions

The Common Krait is strictly nocturnal. It remains hidden in dark, cool spots during the day and emerges after sunset, with peak activity occurring between 9 PM and 3 AM, especially during the humid monsoon season.

You should not intentionally attract Common Kraits due to their highly venomous nature. However, they are naturally drawn to yards with plenty of hiding spots like rock piles and thick ground cover, as well as areas with high populations of frogs and rodents.

Common Kraits are primarily snake-eaters (ophiophagous), preying on both venomous and non-venomous species. They also supplement their diet with lizards, frogs, and small rodents like mice.

Yes, they are very common in suburban and rural areas. They are highly adaptable and often live in close proximity to humans, utilizing gardens, agricultural fields, and even the gaps in brick walls for shelter.

The most reliable way to identify a Common Krait is by the enlarged, hexagonal scales running down the center of its back. While many snakes have white bands, the Krait's bands are very thin and usually appear on a high-gloss, dark blue or black body.

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