Is it illegal to own a button-quail?

'Button Quails' are actually an endangered species, not the Quail that everyone owns. The Quail people own is a decendent of a BQ, but is actually a Chinese Paint Quail. So, protecting the Button Quail, the real Button Quail, is the main priority. So, do you mean the Chinese Painted Quail?

Otherwise, we should try to protect the BQ, and let it live in peace.

(also, it may depend on where you are)