The exotic and beautiful swallowtail is the UK's largest butterfly. A strong flier, residents can be spotted over wetlands in Norfolk during summer. Migrants occasionally appear in southern…

Flowering in spring, the cylindrical, densely packed flower spikes of Sweet vernal-grass are easily spotted in a meadow. It also tastes of sweet vanilla and was once a favourite 'chewing…

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.

Aspen is a slender poplar tree that can be spotted on heathland and in woodlands, particularly in Scotland. It displays hanging catkins in spring and its fluttering leaves turn vibrant yellow in…

The yellow wagtail can be spotted running about, chasing insects on lowland damp marshes and meadows during summer. As its name suggests, it does wag its tail!

A scarce and declining bird, the tree sparrow can be spotted on farmland and in woodlands; it is not an urban bird in the UK. It has a brown cap and black cheek-spots, unlike the similar house…

The common sandpiper breeds along rivers, and by lakes, reservoirs and lochs in upland Scotland, Northern England and Wales. It can be spotted as a passage migrant at many inland wetlands across…

The lesser-black backed gull can be spotted around the coast in summer, with the biggest colony on Walney Island, Cumbria. Look for it over fields, landfill sites and reservoirs during winter.

The Leisler's bat flies fast and high near the treetops, but you might also spot it flying around lamp posts, looking for insects attracted to the light.

The stock dove looks very much like the woodpigeon, but without the white neck and wing patches. It can be spotted in woodlands and parks, and on farmland in winter, but rarely visits our gardens…

The black-tailed godwit is a rare breeding bird in the UK that has suffered from dramatic declines. It can most easily be spotted around the coast in winter and at inland wetlands when on…

Despite its name, the common gull is not as common as some of our other gulls. It can be spotted breeding at the coast, but is also partial to sports fields, landfill sites and housing estates in…