Four antique singing bird boxes like the one shown in the video will be included in today's auction hosted by Skinner.
Here are images of the actual singing bird boxes going to auction:
Contained within these small, elegant music boxes is a complex mechanism and bellows which provide mechanical movement to the bird, wings, tail and beak while pumping air through a tiny slide-whistle, which provides the sound. Most of these are German made. They are estimated to be worth between $400 to $1,200 each.
Here are the auction details
Date: June 2, 2012, 10am
June 2, 2012, 8am - 9:30am
Location: 274 Cedar Hill Street, Marlborough, MA