Authentic mechanical musical instrument. Two of the three birds in the cage move and whistle. The third bird is static (has no vocals/move function). The bellows in the mechanics provide a varied and pure vocal sound. The cups and pigtails of the birds go back and forth and up and down. The cage has a brass decorated edge. The condition is use, both the cage and the birds have clear traces of old age and/or use. This object will be packed safely and shipped registered and insured.