The graceful great crested grebe is a familiar sight on our lakes and reservoirs, and is well-known for its elaborate courtship dance, during which it rises vertically out of the water and shakes…

The vast, green mats that sometimes cover the surface of still water, such as ponds, flooded gravel pits and old canals, are actually Common duckweed. A tiny, single plant, it groups together to…

If you have a garden pond, look out for the Large red damselfly resting at the water's edge. As the name suggests, males are bright red with a black thorax, but females may be almost entirely…

The gadwall is a dabbling duck, feeding at the surface of shallow water by 'upending' - putting its head down and its bottom up! Only a small number of gadwall nest in the UK, but large…

The humpback whale is making a comeback, with more and more individuals being seen in UK seas every year. They are well known for their acrobatic behaviour - so don't be surprised to see them…

Red valerian was introduced in the 1600s from Europe, but is now naturalised in the UK. Its pinky-red flowers grow from old walls, roadside verges, railway cuttings and cliffs, and provide nectar…

The small, shaggy-furred Brandt's bat roosts in all sorts of houses, old or modern. It is similar to the whiskered bat and they often roost together, but in separate colonies. It feeds low to…

The Land caddis is the only caddisfly in the UK to spend its entire time on land, with no stage in water. Look in oak leaf litter over winter to see the grainy cases of the larvae, in which they…

Crosswort gets its name from the position of its leaves - they surround the stem in groups of four, making a cross shape. The tiny, yellow flowers sit atop these crosses and bloom from April to…

Our most familiar wild violet, the Common dog-violet can be spotted in a range of habitats from woodland to grassland, hedgerows to pastures. Its pansy-like, purple flowers appear from April to…