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.

A tussocky sedge, Greater pond sedge has stout, upright flower spikes, strap-like leaves and triangular stems. It prefers lowland wetland habitats on heavy soils.

A plump gamebird, the red-legged partridge is an introduced species that seems to have settled here with little problem. It can be spotted in its favoured open scrub and farmland habitats.

Escaped or intentionally freed from fur farms in the 1960s, the American mink is now well established in the UK. Its carnivorous nature is a threat to our native water vole and seabird populations…

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.

The sparrowhawk is a small bird of prey that can be found in all kinds of habitats and often visits gardens looking for its prey - small birds like finches, tits and sparrows.

The common blue butterfly lives up to its name - it's bright blue and found in all kinds of sunny, grassy habitats throughout the UK! Look out for it in your garden, too.

Flowering rush is a pretty rush-like plant of shallow wetland habitats, such as ponds, canals and ditches. Its cup-shaped, pink flowers appear in summer, brightening up the water's edge.