The muntjac deer was introduced into the UK from China in the 20th century. It has gained a stronghold in southeast England, where it can cause damage to our woods through browsing.

A breeding bird of fast-flowing, upland rivers, the grey wagtail can also be seen in lowland areas, farmyards and even towns in winter.

Listen out for the 'chattering' song of the reed warbler, while wandering the UK's lowland wetlands in summer. A small, brown bird, they are quite hard to see.

From spring, look out for the beautiful, speckled gold-and-black breeding plumage of the golden plover. It can be found in its upland moorland breeding grounds from May to September, moving to…

The Dark bush-cricket, as its name suggests, is dark brown or reddish. It can be found in woodlands, hedgerows and gardens throughout summer. Its irregular chirpings are a familiar sound of summer…

Shag' is a very old name that means 'tufted' and refers to the small crest that this bird sports. Look out for it in spring and summer either diving for fish from the surface of the…

As its name suggests, creeping bent runs along the ground before it bends and grows upright. It is a common grass of arable land, waste ground and grasslands.

Hedge mustard is a tall plant with small, yellow flowers atop tough stems. It likes disturbed ground and grows in hedgerows and roadside verges, and on waste ground.

The common octopus is a highly intelligent, active predator. It even has a secret weapon - special glands produce a venom that it uses to incapacitate its prey!