Look for the wood warbler singing from the canopy of oak woodlands in the north and west of the UK. Green above, it has a distinctive, bright yellow throat and eyestripe.

The black-headed gull is actually a chocolate-brown headed gull! And for much of the year, it's head even turns white. Look out for it in large, noisy flocks on a variety of habitats.

Their empty, delicate pink or yellow shells can often be found washed up on beaches, but the animals themselves live buried in the sand all around the coasts of the UK.

Efallai bod bronwennod yn edrych yn hoffus ond maen nhw’n gallu bwyta llygod pengrwn, llygod ac adar mewn dim o dro! Maen nhw’n perthyn i ddyfrgwn a charlymod, sy’n amlwg o weld eu corff main, hir…

Plaice is a common sight all around our coasts - if you can spot it! They are extremely well camouflaged against the seabed and can even change colour to better match their surroundings.

The brimstone moth is a yellow, night-flying moth with distinctive brown-and-white spots on its angular forewings. It frequently visits gardens, but also likes woods, scrub and grasslands.

The eider is a large seaduck, famed for its soft, downy feathers that are not only used by the bird to line and insulate its nest, but also by humans to stuff our quilts and pillows. It nests…

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…