This worm builds its own home out of bits of shell and sand. It can be spotted on the shore all around the UK.

This charming little warbler is an increasingly common sight in autumn, when migrants pass through the UK.

Look for Water avens in damp habitats, such as riversides, wet woodlands and wet meadows. It has nodding, purple-and-orange flowers that hang on delicate, purple stems.

Look for wood avens along hedgerows and in woodlands. Its yellow flowers appear in spring and provide nectar for insects; later, they turn to red, hooked seedheads that can easily stick to a…