Our friend Michael Start over at The House of Automata created this lovely video of a a singing bird mechanism. During the course of the bird's song, we get a 360 degree view of this ingenious device.
According to his description, the mechanism was made about 120 years ago in Paris. It is most likely the work of Bontems, a distinguished maker of bird automata.
An expert at horology and automata, Start restored the mechanism, though it was rusted and seized when he received. It is very common that the fine leather used for the bellows dries, cracks, and leaks on these singing bird mechanisms. He notes with surprise that the bellows were in good condition.
If you are curious about what the rest of a singing bird mechanism looks like, check out this post featuring a video on How Singing Birds are Made.[ Thanks Mauricio! ]