The green hairstreak is the UK's only green butterfly. Look out for the vibrant, metallic sheen of the undersides of its wings on grassland and moorland, and along woodland rides.

Despite its name, Ground-ivy is actually a member of the dead-nettle family. It is a clump-forming, aromatic plant that likes woodlands, hedgerows and damp places.

Hedge mustard is a tall plant with small, yellow flowers atop tough stems. It likes disturbed ground and grows in hedgerows and roadside verges, and on waste ground.

The Leisler's bat flies fast and high near the treetops, but you might also spot it flying around lamp posts, looking for insects attracted to the light.

A low-growing herb of chalk and limestone grassland, Salad burnet lives up to its name - it is a popular addition to salads and smells of cucumber when crushed!

During the breeding season, the common tern can be seen around our coasts and also inland at gravel pits, reservoirs and lakes. It nests in noisy colonies and can be spotted plunge-diving for fish…

This long-lived bivalve can be found buried in the sand on the south and west coasts of the UK.

Considered to be one of the prettiest gentians, the Chiltern gentian is a rare plant in the UK. It likes chalk grasslands, its purple, trumpet-shaped flowers blooming from August.

The early gentian is a rare plant that is only found in the UK. It likes sunny, lowland chalk grasslands, its purple, trumpet-shaped flowers blooming in May and June.