This funny-looking fish certainly won't be winning any beauty pageants, but it's a real contender for Father of the Year!

You're more likely to see the attractive, brightly coloured caterpillars than the mullein moth itself.

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

The pretty small tortoiseshell is a familiar garden visitor that can be seen feeding on flowers all year-round during warm spells. Overwintering adults may find resting spots in sheds, garages or…

This large, fluffy-looking moth is on the wing in July and August, but you might spot a caterpillar at almost any time of year.

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

The wigeon is a colourful duck that can often be spotted wheeling round our winter skies in large flocks. A dabbling duck, it surface-feeds on plants and seeds in shallow waters.

Found along the coast all year-round, the dunlin is a small sandpiper that breeds and winters in the UK. It can be seen in its upland breeding grounds in summer, when it turns brick-red above and…

The harvest mouse is tiny - an adult can weigh as little as a 2p piece! It prefers habitats with long grass, but you are most likely to spot its round, woven-grass nests.

Look out for this weevil on oak trees, where females lay their eggs inside acorns.

The red grouse is an umistakeable bird - plump and round, with a gingery-red body as its name suggests. Found on upland heathlands, it is under threat from the nationwide, dramatic loss of these…