The grey squirrel was introduced into the UK in the 1800s. It provides an easy encounter with wildlife for many people, but can be damaging to woodlands and has contributed to the decline of the…

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.

As its name suggests, the house martin can be spotted nesting in the eaves of houses in our towns and villages. Its intricate mud nests take days to build and are often returned to and used in…

A familiar 'weed' of gardens, roadsides, meadows and parks, red clover has trefoil leaves and red, rounded flower heads. It is often used as fodder for livestock.

As its name suggests, Red bartsia does have a red tinge to its stem, leaves and small flowers. Look for it on roadside verges, railway cuttings and waste ground in summer.

A strikingly beautiful fish, it is not hard to see where the ‘red’ mullet gets its name from!