The magician shows an empty Pan and drops a piece of lit cloth or paper inside. The Pan is covered, and when it is opened a live dove,or similar small animal, appears.
This, of course, is just one possible effect. as the Dove Pan is a classic magic prop and lots of routines and presentations have appeared in magic books and magazines.

Large size dove pan, approximately 9 inch diameter, 6 inch height, and pan depth of 2.75 inches.
Seamless heavy gauge stainless steel.
Full instructions and ideas for routines.