This beautiful butterfly is one of our rarest, now mostly restricted to the western parts of the UK.

This beautiful beetle only arrived in the UK in 1960s but is now a common sight on garden herbs.

Egyptian geese were introduced to Britain from Africa. They are now widespread in southern England.

Once a rare visitor to the UK, this striking gull is now found nesting here in large colonies.

This beautiful bumblebee favours upland areas, but has declined in recent decades and is now nationally scarce.

The distinctive sight of a spoonbill is becoming increasingly common in the east and southwest of England, with colonies of breeding birds now established.

A very rare species, this moth is now limited to one site in the UK. Males can be a striking reddish buff in colour.

This well-camouflaged woodpecker used to be a common breeding bird in Britain, but is now only likely to be seen passing through on migration.

This dainty white butterfly is now only found in a few parts of Britain, where it flutters slowly through woodland clearings.