Reptiles Active during the day

Green Keelback

Rhabdophis plumbicolor

iNaturalist Wikipedia

Meet the 'Toad-Eater' of the garden—a gentle, grass-green snake known for its docile nature and unique ridged scales. Often found near backyard ponds, the Green Keelback is a master of camouflage and a fascinating neighbor for any wildlife enthusiast.

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0 Habitats

Quick Identification

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Size

45-60 cm (18-24 inches) on average, though large specimens can reach up to 90 cm (35 inches).

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Colors

Uniform grass-green or dull olive-green above; creamy white or pale yellow belly. Juveniles feature a bold, black inverted 'V' on the neck.

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Key Features

Stout, toad-like body with a broad head
Heavily keeled (ridged) scales giving a rough texture
Large eyes with round pupils and a gentle expression
Distinctive black 'V' or chevron on the nape (more prominent in juveniles)

When You’ll See Them

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Activity pattern Active during the day

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Peak hours 7-10 AM, 4-6 PM

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Season June-October (Monsoon season)

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Diet Primarily feeds on toads and frogs; it is a specialist predator of the common toad (Duttaphrynus melanostictus).

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Habitat Lush gardens, deciduous forests, grasslands, and agricultural fields near water.

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Where Does the Green Keelback Live?

The Green Keelback is a quintessential resident of the Indian subcontinent, thriving across the diverse landscapes of India and Sri Lanka. While its heartland lies in the central and southern regions of India, its range also extends westward into parts of Pakistan and eastward toward Myanmar. You will typically find it in areas where moisture is present, favoring the lush vegetation of the Western Ghats as well as suburban garden patches that offer plenty of amphibian prey.

Basemap © OpenStreetMap contributors

5 Countries

2.2M km² Range

Least Concern Conservation

IN India Sri Lanka Pakistan Myanmar Bangladesh

Elevation range

0 m1,000 m2,000 m4,000 m

Sea level – 2,100 m

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iNaturalist / Verified observation data

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Behavior

The Green Keelback is one of the most docile and mild-tempered snakes you might encounter in a backyard setting. Unlike many of its faster, more high-strung relatives, this species is slow-moving and relies on its camouflage to stay hidden. When it feels threatened, rather than striking, it typically flattens its body against the ground to appear larger—a behavior often called 'mock-hooding.' It is so reluctant to bite that it is frequently handled by researchers with minimal protective gear, though it should always be treated with respect.

This species is primarily diurnal, meaning it is active during the day. It spends its time foraging through leaf litter or low vegetation. Interestingly, it has a specialized relationship with its prey; it is one of the few predators capable of eating poisonous toads without ill effects. Because of this diet, the Green Keelback is often found near permanent or semi-permanent water sources where amphibians congregate, making it a common visitor to garden ponds and damp irrigation ditches.

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Camera Tips

To capture high-quality footage of a Green Keelback, camera placement is everything. Because these snakes are terrestrial and relatively slow-moving, you should position your AI camera as low to the ground as possible—ideally just 2 to 4 inches above the surface. Focus your lens on 'natural highways' like the edge where a stone wall meets a garden bed, or along the damp perimeter of a backyard pond. These snakes love high-contrast areas where they can easily slip into cover if a predator appears.

Since Green Keelbacks are diurnal, ensure your camera is set to its highest resolution during daylight hours. Unlike fast-moving mammals, keelbacks move with a deliberate, rhythmic crawl, so a standard trigger speed is usually sufficient. However, setting your camera to 'Video Mode' or a 'Burst Photo' mode is highly recommended. This allows you to see the unique way they flatten their bodies and flick their tongues, which helps in confirming identification through the ridged, keeled scales that give them their name.

The best 'lure' for a Green Keelback is a healthy ecosystem. They aren't attracted to traditional baits, but they will frequent areas with high amphibian activity. If you have a garden pond or a pile of damp logs that attracts toads, that is exactly where you should point your camera. During the monsoon season, when toads are most active, your chances of a sighting increase significantly. Look for them during the cooler morning hours when they emerge to bask and thermoregulate before they begin their daily hunt.

Similar Species

Species that look similar or are commonly confused with Green Keelback.

Green Vine Snake

The Vine Snake is incredibly slender with a long, pointed snout, unlike the stout, toad-like build of the Green Keelback.

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Frequently Asked Questions

Green Keelbacks are primarily diurnal, meaning they are active during the day. They are most frequently spotted in the mid-morning when they emerge to bask in the sun and again in the late afternoon while foraging for toads.

The best way to attract this species is to create an amphibian-friendly environment. Installing a small garden pond, keeping leaf litter in shaded corners, and avoiding pesticides will encourage toads and frogs, which are the Green Keelback's primary food source.

They are specialists that primarily eat toads and frogs. They are famous for their ability to safely consume poisonous common toads, which many other predators avoid.

Yes, they are very common in suburban gardens across India and Sri Lanka, especially in neighborhoods with plenty of greenery and moisture. They are often mistaken for venomous snakes because of their green color.

The Green Keelback has a stout body, round pupils, and heavily ridged (keeled) scales. In contrast, the Bamboo Pit Viper has a more triangular head, vertical 'cat-eye' pupils, heat-sensing pits between the eyes and nostrils, and usually a reddish-brown tail tip.

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