The Wizarding world of Harry Potter displayed a wide variety of magical elements that made Harry Potter this mystical place that fans loved and appreciated. J.K. Rowling, author of the Harry Potter books, created a multitude of magical elements in Harry Potter, with numerous new species and magical creatures that wandered through Hogwarts' Forbidden Forest. WarnerBros. managed to encapsulate this sense of the supernatural in the Harry Potter movies and bring all sorts of creatures on-screen.
Source:https://www.cbr.com/biggest-harry-potter-creatures/