The stonechat is named for its call, which sounds just like two small stones being hit together! It can be seen on heathland and boggy habitats.

It's easy to see where the blue shark got its name from. These sleek, elegant sharks have beautiful metallic blue backs which provide brilliant camouflage out in the open ocean.

"One for sorrow, two for joy…" is a popular rhyme associated with the magpie - a bird of much myth and legend. An unmistakeable member of the crow family, it can be seen almost anywhere…

The four-spotted chaser is easily recognised by the two dark spots on the leading edge of each wing - giving this species its name. It can be seen on heathlands and near ponds and lakes.

This black and grey solitary bee takes to the wing in spring, when it can be seen buzzing around burrows in open ground.

The gudgeon is a bottom-dwelling fish, similar to the stone loach, but with only two whisker-like barbels near its mouth. These sensory organs help it to find its prey in the sand and gravel of…

Tansy is an aromatic plant of rough grassland, riverbanks and verges that has button-like, yellow flower heads. It is the main foodplant of the rare Tansy Beetle, now found at only two places in…

The nuthatch is a tit-sized, grey and rust-coloured bird that can be easily spotted climbing headfirst down tree trunks in woodlands and parks.