What is arithmetic-bird?

Arithmetic birds were small mechanical song birds that sang different numbers (1-12) when their beaks were pressed. Some were musical and used in church organs, and some were toys. They originated in the 1700s. The earliest example is dated to 1730.

An automatic flute like singing bird, powered by a clockwork mechanism. The bird sings as it rocks from side to side. One of a pair of clockwork singing birds created by Jaquet-Droz and his son between 1775-85. An automatic flute like singing bird, powered by a clockwork mechanism. The bird sings as it rocks from side to side. One of a pair of clockwork singing birds created by Jaquet-Droz and his son between 1775-85.