A key species in the story of conservation, the avocet represents an amazing recovery of a bird once extinct in the UK. This pied bird, with its distinctive upturned bill, can now be seen on…

Native Oysters are a staple of our seas and our plates - but our love of their taste has lead to a sharp decline all around the UK.

This small finch nests on moorlands and coastal crofts, spending the winter on the coast. The UK population has declined dramatically.

The dazzling silver-studded blue is a rare butterfly of heathland habitats, mainly in southern England. It has undergone severe population declines in recent years.

With a population of 75 million, the field vole is one of the UK's most common mammals. Hidden among the vegetation of grassland, heathland and moorland, it is not as easily spotted as the…