Occamy

• Ministry of Magic Classification: XXXX (Dangerous / Requires specialist knowledge / Skilful wizard may cope) (Fantastic Beasts and Where to Find Them textbook)
• Native to: The Far East and India (Fantastic Beasts and Where to Find Them textbook)
• Distinction: Chorochronistic (able to grow or shrink to fit available space)
• Diet: Primarily rats, birds, and occasionally monkeys (Fantastic Beasts and Where to Find Them textbook)

An Occamy is a magical beast with a plumed, serpentine body, two legs, and a pair of wings. Its plumage is a shimmering, iridescent mix of purple and blue, giving it a beautiful yet intimidating appearance. The creature is known for its chorochronistic nature, meaning it can grow to immense sizes, reportedly up to fifteen feet in length, or shrink to fit into a very small container, such as a teapot. Its head is avian in appearance, with a sharp beak and feathers that form a crest-like mane. The combination of its serpentine and bird-like features makes it a visually striking and unique creature in the Wizarding World.

The Occamy possesses several distinct magical traits, the most notable of which is its chorochronism.

• Chorochronism: This is the ability to physically alter its size to occupy the entirety of an available space. This was demonstrated when one escaped Newt Scamander's suitcase and grew to fill the large attic of a department store, later shrinking to hide inside a small teapot. (Fantastic Beasts and Where to Find Them film)
• Aggression: Occamies are extremely aggressive and protective, especially of their eggs. They will attack any perceived threat that approaches their nest without hesitation. This aggressive nature is the primary reason for their XXXX Ministry of Magic Classification.
• Valuable Eggs: The most sought-after product from an Occamy is its eggs. The shells are made of the purest, softest silver and are highly prized. This makes Occamies a target for poachers.

While native to the Far East, the Occamy is known globally in the Wizarding World, largely due to the value of its eggs. The only mention of the creature in the history of Harry Potter's time at Hogwarts comes from Gilderoy Lockhart. During a Defence Against the Dark Arts class, Lockhart bragged that the secret ingredient in his own line of hair-care potions was “Occamy egg-yolk”. Given Lockhart's propensity for lying, the veracity of this claim is highly questionable. In 1926, at least one Occamy was part of Newt Scamander's menagerie of magical creatures. It escaped from his suitcase in New York and had to be recaptured by Newt with the help of Tina Goldstein, Queenie Goldstein, and Jacob Kowalski. (Fantastic Beasts and Where to Find Them film)

The Occamy has no direct role in the original seven-book *Harry Potter* series, aside from the aforementioned mention by Gilderoy Lockhart in Harry Potter and the Chamber of Secrets. Its significant role occurs in the *Fantastic Beasts and Where to Find Them* film series. An escaped Occamy serves as a major challenge for the protagonists, showcasing the dangers of Newt Scamander's escaped beasts and providing a key scene that requires teamwork between the four main characters to resolve. The sequence highlights the creature's chorochronistic ability and aggression, and its eventual capture is a pivotal moment in the group's adventure.

The name “Occamy” is likely derived from the philosophical principle known as “Occam's Razor,” formulated by the 14th-century friar William of Ockham. The principle states that “entities should not be multiplied beyond necessity.” The creature's ability to “multiply” its size to fill a space serves as an ironic inversion of this principle.

• The Occamy is not described in the original seven novels. Its only connection is the term “Occamy egg-yolk” in Harry Potter and the Chamber of Secrets.
• The creature's physical appearance, behaviour, and chorochronistic ability were developed and showcased for the 2016 film, Fantastic Beasts and Where to Find Them.
• The term “chorochronistic” was created by J.K. Rowling for the creature, combining the Greek roots chōros (space) and chronos (time), though its ability relates only to space. (Pottermore)