Scottish Wildlife. Adder.

Adders are relatively small, stocky snakes which prefer woodland, heathland and moorland habitat. They are grey or reddish brown, with a darker and very distinct zig-zag pattern down their backs. Rarer black forms are also sometimes spotted.

Behaviour

Adders hibernate from October, emerging in the first warm days of March, which is the easiest time of year to find them basking on a log or under a warm rock.

They hunt lizards and small mammals, as well as ground-nesting birds such as skylark and meadow pipit.

Size

• Length: 65cm
• Weight: 50-180g
• Average lifespan: 8-10 years

Status

Protected in the UK under the Wildlife and Countryside Act 1981 and classified as a Priority Species in the UK Biodiversity Action Plan.

Distribution

Widespread across the Scottish mainland, but not found on many of the Scottish islands.