The Purple hairstreak is an elusive butterfly with a brilliant purple sheen. It is entirely reliant on oak trees and can be spotted chasing around the treetops in woodlands and parks.

An easily overlooked orchid, the Common twayblade is yellow-green and less showy than other UK orchids. Look for it in woodlands and grasslands on chalky soils, in particular.

The jackdaw is a small, black-capped crow of woodlands, parks, towns and coast. It is a well-known thief, stealing other birds' eggs and breaking into garden feeders.

A delicate, small plant of woodlands and hedgerows, wood-sorrel has distinctive, trefoil leaves and white flowers with purple veins; both fold up at night.

Often spotted in large flocks, the fieldfare is an attractive thrush. It is a winter visitor, enjoying the feast of seasonal berries the UK's hedgerows, woodlands and parks have to offer.

The tiny firecrest vies with the goldcrest for the title of the UK's smallest bird. Once just a visitor, the firecrest can now be found breeding in woodlands in the south of England.

The grey squirrel was introduced into the UK in the 1800s. It provides an easy encounter with wildlife for many people, but can be damaging to woodlands and has contributed to the decline of the…

The black hairstreak is a rare butterfly that is restricted to woodlands and hedgerows containing blackthorn - the foodplant of the caterpillar. It is both elusive and hard to tell apart from…

The shy dunnock can be seen hopping about under hedges as its other name, 'hedge sparrow', suggests. It inhabits gardens, woodlands, hedgerows and parks.

Heralding spring, a carpet of sunshine-yellow lesser celandine flowers is a joy to see on a woodland walk. Look out for it along hedgerows, in parks and even in graveyards, too, from March onwards…

A common tree, ash is familiar to many of us for its autumnal bunches of winged seeds, called 'keys'. It can be found in woodlands and prefers damp and fertile soils.

The green-veined white is a common butterfly of hedgerows, woodlands, gardens and parks. It is similar to other white butterflies, but has prominent green stripes on the undersides of its wings.…