A fierce predator of small fish and flying insects, the brown trout is widespread in our freshwater rivers. It is has a golden body, flanked with pale-ringed, dark spots.

As its name suggests, the Marsh violet likes damp spots, such as marshes, bogs and wet woods. It is a low-growing plant with kidney-shaped leaves and pale lilac flowers.

The stoat is a small mustelid, related to the weasel and otter. It has an orange body, black-tipped tail and distinctive bounding gait. Spot it on grassland, heaths and in woodlands across the UK…

The rare wildcat is so similar to a domestic tabby that interbreeding is a serious threat to its survival. Although known as the 'tiger of the Highlands', it is shy and elusive, making…

Shag' is a very old name that means 'tufted' and refers to the small crest that this bird sports. Look out for it in spring and summer either diving for fish from the surface of the…

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.

When spotting the pintail in winter, look out for the fabulous, long tail feathers that characterise it. This dabbling duck feeds at the water's surface, rather than diving for food.

You are likely to spot the smooth newt in your garden or local pond. It breeds in water in summer and spends the rest of the year in grassland and woodland, hibernating over winter.

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…

The streamlined goosander is a handsome bird and a great fisher - its long, serrated bill helps it to catch and hold its slippery fish prey. It nests in riverbank trees, but can be seen on lakes…

Famed for its super-fast fishing dives into the sea, the northern gannet (or gannet) is a distinctive white bird with a yellow head and black wingtips. It nests in large, noisy, smelly colonies on…