The Atlantic salmon spends most of its life at sea, but makes an epic journey back to the river or stream in which it hatched to spawn. Look out for it in freshwater rivers in the north and west…

This distinctive bug is often seen basking on low-growing plants in spring and summer.

This striking duck was introduced to the UK and is now established as a breeding bird in England.

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.

The whooper swan is a very rare breeding bird in the UK, but has much larger populations that spend winter here after a long journey from Iceland. It has more yellow on its yellow-and-black bill…

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.

These distinctive beetles are often found around dead birds and small mammals.

Also known as the two-coloured mason bee, this beautiful bee is famous for nesting in old snail shells.

The common rosefinch is a rare visitor to the UK, usually passing through in autumn.

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