Red squirrels are native to the UK but are a lot rarer than their grey cousins. They live in a few special places across the UK thanks to reintroduction projects.

A key species in the story of conservation, the avocet represents an amazing recovery of a bird once extinct in the UK. This pied bird, with its distinctive upturned bill, can now be seen on…

The attractive roe deer is native to the UK and widespread across woodland, farmland, grassland and heathland habitats. Look for its distinctive pale rump and short antlers.

The Arctic tern is famed for its aggression towards any that would disturb its nest - it will dive-bomb intruders with its sharp beak. Large, noisy colonies can be found on the Farne Islands and…