Blood-Sucking Bugbear

The Bugbear (also known as the Blood-sucking Bugbear) is a magical creature probably some sort of bear. Rubeus Hagrid expected that they may be the ones killing the Roosters in the Chamber of Secrets. In legend the Bugbear was a creature that ate naughty children, though now the term is used to describe a fear based more on imaginary then real.