Last updated: 07 April 2008
Badger numbers declined in the 20th century as a result of persecution, pesticides and road deaths.
The Protection of Badgers Act was introduced in 1992 in order to protect badgers and their setts from harm. This has helped numbers to recover. There are now thought to be 35,000 badgers found in the woodlands, hedgerows, pastures and urban areas of Wales.
As well as worms, badgers eat slugs, frogs, seeds, berries, mice, and even baby rabbits. Wasps' nests are a particular delicacy on a badgers menu.
They live in setts (underground networks of tunnels and chambers) which they dig using their strong front legs which are equipped with long stout claws.
Badgers are nocturnal creatures, so the best time to go badger watching is at dusk when they're just starting to emerge from their underground slumber.
Try one of the walks from Derek's latest walking series on BBC One Wales.
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