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 smaller of our two UK seal species, common seals are also known as harbour seals. Despite being called "Common", they are actually less common than grey seals!

The tightly packed, thistle-like purple flower heads of common knapweed bloom on all kinds of grasslands. Also regularly called black knapweed, this plant attracts clouds of butterflies.

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.

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.

The shiny, translucent porcelain fungus certainly lives up to its name in appearance. It can be seen growing on beech trees and dead wood in summer and autumn.

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.

The UK hosts a small, but important, breeding population of ruff. The ruff is a large sandpiper that is so-called due to the large ruff of feathers around the males' neck. This is used in a…