The sessile oak is so-called because its acorns are not held on stalks like those of the familiar English oak. It can be found in woodlands mainly in the north and west of the UK.

It is so easy to miss this clever little moth. It is a master of disguise, blending in perfectly as it looks just like the twig of a birch tree! Flying only at night, the buff-tip moth can be seen…

The common pipistrelle is so small, it can fit into a matchbox! Despite its size, it can easily eat 3,000 insects a night: look for it flitting around the garden or a lit lamp post as it chases…

Only a few pairs of snow bunting breed here, so look out for this striking black-and-white bird in winter around Scotland, the North West and the East coast of England.

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…

A large hawker, the common hawker can be seen throughout the summer and into autumn. A fast-flying insect, it catches its prey mid-air. Look for it around ponds in the uplands of the north and…

Horseradish is used as a well-loved condiment. This member of the cabbage family is actually an introduced species in the UK, but causes no harm in the wild.