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.

Bell heather is our most familiar heather. In summer, it carpets our heaths, woods and coasts with purple-pink flowers that attract all kinds of nectar-loving insects.

Cross-leaved heath is a type of heather that likes bogs, heathland and moorland. It has distinctive pink, bell-shaped flowers that attract all kinds of nectar-loving insects.

A familiar black bird of our lakes, ponds and rivers, the moorhen is widespread; look out for its large and untidy-looking nest on the water in spring. It can be distinguished from the similar…

The variable damselfly looks a lot like the azure damselfly, but is much less common throughout most of the UK.

Red squirrels are native to the UK but are a lot rarer than their grey cousins. They live in a few special places across the UK thanks to reintroduction projects.

Heather is also called 'ling'. Look for it on our heaths, moors and bogs, where its delicate, loosely arranged pink flowers attract all kinds of nectar-loving insects.

With its fluffy-looking, light blue flower heads, sheep's-bit is a pretty plant of dry grassland, heaths and clifftops. Sometimes carpeting an area, it is popular with nectar-loving insects…

The attractive roe deer is native to the UK and widespread across woodland, farmland, grassland and heathland habitats. Look for its distinctive pale rump and short antlers.

A scarce tree of England and Wales, the large-leaved lime is the rarest of our native limes. It is tall and broad, and can be found in forests and parks, where it is frequently planted.