Scientific name: Puffinus puffinus
This mysterious little bird is known for its haunting call and was once mistaken for witches by pirates off the coast of Wales! They travel thousands of miles every year to nest in their hobbit-like burrows to raise one super fluffy chick.
Average lifespan: 15 years
Classified in the UK as Amber under the Birds of Conservation Concern 4: the Red List for Birds (2015).