An uncommon hedgerow and woodland tree of central and eastern England, purging buckthorn displays yellow-green flowers in spring, and poisonous, black berries in autumn.

This streaky brown bird is a winter visitor, occasionally found walking around the muddy margins of marshes.

This brown seaweed lives in the lower shore and gets its name from the serrated edges to its fronds.

As the name suggests, this beautiful brown butterfly is most common in Scotland, though it can also be seen in northern England.

This stocky, brown mammal spends its life burrowing underground with its spade-like paws, hunting for earthworms to eat.