Final answer:
The small, jewel-bright birds that Harry, Ron, and Hermione were chased by in the chamber are called Cornish Pixies.
Step-by-step explanation:
The small, jewel-bright birds that Harry, Ron, and Hermione were chased by in the chamber are called Cornish Pixies. In the book Harry Potter and the Chamber of Secrets, Cornish Pixies are mischievous creatures that cause trouble and chaos. They have brightly colored feathers and are known for their quick and erratic movements. The Cornish Pixies in the chamber were chasing the trio as part of a defense mechanism set up by the Basilisk.
Therefore, the small, jewel-bright birds that Harry, Ron, and Hermione were chased by in the chamber are called Cornish Pixies.