Like many of our farmland birds, the corn bunting has declined in number in recent years. Spot this streaky brown, thick-billed bird singing from a wire or post - it sounds just like a set of…

Familiar as the bristly plant that easily hooks on to our clothing as we walk through the countryside or do the gardening, cleavers uses its hooks to help it climb and to disperse its seeds.

The secretive woodlark can be hard to spot. It nests on the ground on our southern heathlands and uses scattered trees and woodland edges for lookout posts.

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.

The rose-red breast, large black cap and thick bill make the bullfinch easy to identify. A plump-looking bird of woodlands, hedgerows and orchards, it also frequents gardens.

The razorbill has a characteristically thick, black bill, with a white stripe across it. It nests with other seabirds, such as guillemots, but prefers the lower ledges and rocky bottoms of cliffs…