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

The Speckled bush-cricket, as its name suggests, is covered in tiny, black speckles. It can be found in scrub, hedgerows and gardens throughout summer. Males rub their wings together to create a…

Swifts spend most of their lives flying – even sleeping, eating and drinking – only ever landing to nest. They like to nest in older buildings in small holes in roof spaces.

Field elm suffered declines due to the devastating effects of Dutch elm disease, but can still be found across much of the UK.

The herring gull is the typical 'seagull' of our seaside resorts, though our coastal populations have declined in recent decades.

The whimbrel is very similar to the curlew, but a little smaller and with a striking face pattern. Its eerie call is a series of seven whistles; listen out for it around the coast as its passes…

A fleshy herb of the wet margins of brooks, streams and ditches, Brooklime can be seen all year-round and provides shelter for tadpoles and sticklebacks.

The stately grass-of-parnassus displays pretty, white flowers with green stripes. Once widespread, it is now declining as its wetland habitats are disappearing.

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.