Although introduced by humans, the fallow deer has been here so long that it is considered naturalised. Look out for groups of white-spotted deer in woodland glades.

The Migrant hawker is not a particularly aggressive species, and may be seen feeding in large groups. It flies late into autumn and can be seen in gardens, grasslands and woodlands.

This scarce breeding duck is a summer visitor, spending the winter in Africa. Although large flocks can be found in their wintering grounds, they are usually only seen in pairs or small groups in…

One of our most common butterflies, the meadow brown can be spotted on grasslands, and in gardens and parks, often in large numbers. There are four subspecies of meadow brown.

Known for its bandit-like appearance, the polecat was once so persecuted it was on the brink of extinction in the UK. Thankfully, numbers are now increasing in rural Wales and parts of England.…

The wild rock dove is the ancestor to what is probably our most familiar bird - the feral pigeon, which is often found in large numbers in our towns and cities.

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…

This large, brown beetle can be seen swarming around streetlights in spring. They live underground as larvae for years and emerge as adults often in large numbers. Listen for their characteristic…

Living up to its name, the shoveler has a large and distinctive shovel-like bill which it uses to feed at the surface of the water. It breeds in small numbers in the UK, but is widespread in…