How do antique singing bird music boxes work?

A lifelike bird made of feathers and metal sits at the top of the box. When activated, the bird flaps its wings, turns its head, and opens its beak, as
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A lifelike bird made of feathers and metal sits at the top of the box. When activated, the bird flaps its wings, turns its head, and opens its beak, as chirps and warbles play. Inside the decorative box, there’s a complex system of gears and springs. The chirping sounds are

Antique Singing Bird Music Box

Lot - VINTAGE REUGE MUSIC MECHANICAL SINGING BIRD BOX With ormolu mounts and enameled body imitating lapis lazuli. Height 2. Width 4.25.

Singing bird music box early 20th century - Ref.102311

BIRD 一次創作

Singing Bird Boxes Information and Price Guide - Antique Automatons

Reuge singing bird box automaton

inventions Archives The Kid Should See This

Exquisite and Rare, Singing Birds, Mechanical Birds, Music Boxes, Automata

BIRD 一次創作

How do antique singing bird music boxes work?