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.

The black poplar is a large tree of floodplains, flooded gravel pits and ditches, particularly in England. Despite being an important part of our culture for centuries, it has declined massively…

The emperor dragonfly is an impressively large and colourful dragonfly of ponds, lakes, canals and flooded gravel pits. It flies between June and August and even eats its prey on the wing.

The UK's smallest hawker, the Hairy dragonfly is mostly black in colour, but has a distinctively hairy thorax. It can be found in grazing marshes and flooded gravel pits, and along canals…

The gudgeon is a bottom-dwelling fish, similar to the stone loach, but with only two whisker-like barbels near its mouth. These sensory organs help it to find its prey in the sand and gravel of…

If you happen to be near rocky places such as sea cliffs, shingle coastlines or even gravel paths during the summer months you will most likely come across sea campion.

During the breeding season, the common tern can be seen around our coasts and also inland at gravel pits, reservoirs and lakes. It nests in noisy colonies and can be spotted plunge-diving for fish…