From the eBay description:
This is a nice "PAON MARCHANT...."WALKING PEACOCK"....MADE BY ROULLET-DECAMPS, PARIS, FRANCE C.1890-1910......The body is made of mache paper it is in regular conditions with details. It doesn't have feathers...... The mechanism is in good conditions and it is clockwork and working, it walks to the front and moves the head from one side to the other side and the tail too...... the measures 6.5 inches large by 8 inches tall.
Here's the full listing with 12 different photographs of this walking peacock automaton.