Hamster

A hamster was a type of small, burrowing rodent that was commonly kept as a pet.

History
The Bludgeoning Boggart of Old London Town, a famous Boggart that prowled the streets of 19th century London in the form of a "murderous thug," could be reduced to a hamster with a simple spell.

In 1991, one of Queen Elizabeth II's pet corgis was transformed into a hamster by an unknown witch or wizard, prompting the Improper Use of Magic Office to launch an investigation. Muggle authorities concluded that the Queen's dog had been stolen and replaced with a hamster as a "cruel" prank.

Magic hamsters were a were magical variety of hamster kept as a pet by witches and wizards. On 31 October 1991, a Slytherin student lost his magic hamster, and asked Harry Potter if he had seen it.

Appearances

 * PS F
 * PS G
 * Pottermore