FAQs about snakes: which species?

Grass snakes have a yellow and black collar (Ben Limburn)

WILDLIFE INFORMATION SERVICE

Frequently Asked Questions about... snakes:

What species of snake have I seen?

Grass snakes are easily identifiable by their yellow and black 'collar' (pictured right). They are the most commonly observed snake in gardens, particularly near ponds, canals and rivers. Grass snake markings can be varied but they are commonly a shade of green or brown with 'bar' markings down each side.

Slow-worms though mistaken for snakes, are actually a species of legless lizard. Slow-worms are coppery, gold, brown or grey and have a shiny appearance. They differ from snakes by having a more cylindrical body and a moveable eyelid allowing them to blink. They can also detach their tails if attacked (like all UK lizards). Slow-worms are the most common reptile in garden in England and Wales, often found underneath slabs and within compost heaps.

Adders have a very distinctive zigzag pattern down the back. Male adders tend to be grey with black markings and females are brown with dark brown markings. They are rarely seen in gardens as they prefer undisturbed habitats.

Smooth snakes are rare and secretive and are very unlikely to be seen in gardens as they depend almost wholly on patches of heathland. Smooth snakes often have a butterfly-shaped marking on the top of the head, with dark lines on the sides of the head behind the eyes.

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