The main person that does this is the Hogwarts caretaker, Argus Filch. However, he also has help from his cat, Mrs. Norris.
Owl, rat, and cat. I think also a frog.
She tells Filch if the kids are causing trouble
Professor McGonagall is the transfiguration professor at Hogwarts and can turn into a cat. She doesn't follow Harry around though, the cat that does that is Filch the caretakers cat Mrs Norris, who is not a transfigured human.
Transfiguration was taught by Professor Albus Dumbledore. When he became headmaster he was replaced by Professor Minerva McGonagall.
There is no real Hogwarts school; Hogwarts is a fictional place.There is no real Hogwarts school; Hogwarts is a fictional place.There is no real Hogwarts school; Hogwarts is a fictional place.There is no real Hogwarts school; Hogwarts is a fictional place.
Hogwarts is in Scotland
There are thousands of online Hogwarts sites, such as PotterAcademy, Hogwarts Online, and Magical Hogwarts. I am launching a new site soon called e-Hogwarts: ehogwarts.webs.com
Hogwarts students.
The motto of Hogwarts is ', Lit.'.
its magic
The Hogwarts symbol.