Bladder campion is so-called for the bladder-like bulge that sites just behind the five-petalled flower - this is actually the fused sepals. Look for it on grasslands, farmland and along hedgerows…

The rare heath fritillary was on the brink of extinction in the 1970s, but conservation action turned its fortunes around. It is still confined to a small number of sites in the south of England,…

A bushy brown seaweed that appears bright blue underwater.

The Banded demoiselle can be seen flitting around slow-moving rivers, ponds and lakes. The males are metallic blue, with a distinctive dark band across their wings, and the females are a shiny…

Beavers are the engineers of the animal world, creating wetlands where wildlife can thrive. After a 400-year absence, beavers are back in Britain!

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…

Look out for the black guillemot all year-round at scattered coastal sites in Scotland, England, Wales and the Isle of Man. It tends not to travel far between seasons, breeding and wintering in…

With tiger-like stripes, red fins and a humped back, the perch is a striking fish. It can be seen in lowland waterbodies and waterways across the UK, often in shoals.

This elegant wading bird is a rare visitor to the UK, though occasionally one or two of pairs will nest here.

The all-black carrion crow does not nest in colonies like the similar rook. It can be seen almost everywhere.

The black sea bream really is a fascinating fish. From sex changes to nest building, this fish is full of surprises!

Red-necked grebes occasionally attempt to nest in the UK, but they're more often seen as winter visitors to sheltered coasts.