Adder - Vipera berus
The adder is the only venomous snake native to Britain. Adders have the most highly developed venom injecting mechanism of all snakes, but they are not aggressive animals. Adders will only use their venom as a last means of defence, usually if caught or trodden on. No one has died from adder bite in Britain for over 20 years.
Adders are relatively common in areas of rough, open countryside and are often associated with woodland edge habitats. They are less inclined to disappear into the surrounding undergrowth when disturbed and so are probably the most frequently seen of the three British snakes. The best time to see them is in early spring when they emerge from their hibernation dens. By mid April, the males have shed their dull winter skin and are ready to mate.
They feed mainly on small mammals, lizards, frogs and newts. Like all snakes, adders eat their prey whole, their teeth are designed to grip the prey as it is swallowed. Their jaws are linked by extensible connective tissue so each of the four main bones can move independently. This means they are able to swallow items much larger than the width of their head. The lower ends of the ribs are not joined as in most animals and can also open out considerably. The adder's digestive fluid is amazingly powerful and will digest the flesh and bones of their prey almost completely. Only the hair and teeth of rodents pass through intact.
Identification
Most adders are distinctively marked with a dark zigzag running down the length of the spine and an inverted 'V' shape on the neck. Males are generally white or pale grey with a black zigzag. Females are a pale brown colour, with a darker brown zigzag. But some adders are entirely black and can be mistaken for some other species.
Treat adders with respect and leave them alone. Adders are protected by law against being killed or injured through human activity.
Adders are frequently seen in this area.