non-native
New species of shrew shows up in Sunderland
If the greater white-toothed shrew becomes established, it will be the first new ground-dwelling mammal species in Britain since the American mink in the 1920s.
Ring-necked parakeet guide: what they look like, what they eat and where and when to see them in the UK
Noisy flocks of emerald-green birds are becoming an increasingly common sight in the UK, from London's Hyde Park to as far north as Glasgow. Naturalist Mike Dilger tells you everything you've ever wanted know about this exotic non-native bird.