Shepherd's purse is often considered a 'weed'. It produces a lot of seeds and can be found on cultivated and disturbed land, such as arable fields, tracks and gardens.

This secretive bird is a member of the rail family, related to coots and moorhens. The breeding call, a rasping rattle, is given mostly at night, sometimes for hours on end.

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.

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

Despite its name, Common knotgrass is not a grass, but is actually related to the docks. It has wiry stems that grow along the ground, and is a weed of waste ground, gardens and arable fields.

Timothy is a grass of meadows, arable land, waste ground and roadside verges. It is also cultivated as fodder for livestock. Look for slender stems and long, cylindrical flower spikes in summer.…

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!

Selfheal is a low-growing, creeping plant that likes the short turf of grasslands, roadside verges or even lawns. Its clusters of violet flowers appear in summer.