The delicate, tube-like, violet-blue flowers of Skullcap bloom from June to September in damp places, such as marshes, fens, riverbanks and pond margins.

The laughing 'yaffle' call of the green woodpecker can be heard in our woodlands, parks and gardens. Look out for it hopping about your lawn, searching for ants to eat.

The song of the skylark has been the subject of many great musical and literary works. A quintessential feature of our farmland and grasslands habitats, it is declining rapidly with habitat loss…

In May, our hedgerows burst into life as common hawthorn erupts with creamy-white blossom, colouring the landscape and giving this thorny shrub its other name of 'May-tree'.

The striking red crown, golden back, and bright yellow wings of the goldfinch make it one of our prettiest garden birds. It happily visits birdtables and feeders across the UK.

In May, our hedgerows and woodland edges burst into life as Midland hawthorn erupts with masses of pinky-white blossom. During the autumn, red fruits known as 'haws' appear.

Our largest bat, the noctule roosts in trees and can be seen flying over the canopy in search of insect-prey, such as cockchafers. Like other bats, it hibernates over winter.

The wigeon is a colourful duck that can often be spotted wheeling round our winter skies in large flocks. A dabbling duck, it surface-feeds on plants and seeds in shallow waters.

The black poplar is a large tree of floodplains, flooded gravel pits and ditches, particularly in England. Despite being an important part of our culture for centuries, it has declined massively…