This small, white heron is an increasingly common sight in parts of the UK as it spreads north from continental Europe.

This small, round sea urchin is (unsurprisingly!) green in colour and can be found on rocky shores around the UK.

This bog-loving butterfly is mostly found in the north of the UK, where it takes to the wing in summer.

Despite its dazzling colouration, this fabulous nudibranch can be easily missed, due to its small size!

This wading bird is mainly a visitor on its spring and autumn migration, though a small number nest in Scotland.

The drooping, tubular, pink flowers of Common comfrey are a familiar sight to many gardeners. Sometimes considered a 'weed', this hairy plant can be used as an organic fertiliser and a…

Meadow crane's-bill has striking violet flowers that pepper hay meadows, verges and grasslands with colour in summer. It is also a popular choice for gardeners and attracts a wide variety of…

This large shrike visits the UK in small numbers each year, passing through on migration or spending the winter here.

This small finch nests on moorlands and coastal crofts, spending the winter on the coast. The UK population has declined dramatically.

This small duck is an uncommon winter visitor to the UK, where they're usually found on lakes, reservoirs and gravel pits.