The tiny, brown-and-white sand martin is a common summer visitor to the UK, nesting in colonies on rivers, lakes and flooded gravel pits. It returns to Africa in winter.

This yellow-brown seaweed grows in tufts at the very top of rocky shores. Its fronds curls at the sides, creating the channel that gives Chanelled Wrack its name.

The hawfinch is the UK's largest finch, with an enormous bill powerful enough to crush a cherry stone. Despite their size, they are typically elusive, especially during the summer nesting…

Watch the deadly accurate flying of the spotted flycatcher in woodlands, gardens and parks. It sits quietly on a perch waiting for an unsuspecting insect to fly by, deftly dashing out to seize it…

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…