The "Watch-the-birdie" accessory was used to amuse and distract children during a portrait session. The types vary with some using a squeeze bulb that forced air through a rubber hose into a water filled chamber beneath the the bird-like toy. The bird makes a warbling and whistling sound when the bulb is squeezed.
Additional examples requested
We are seeking to improve the range of examples shown here and welcome additions from your own collection and those of insititutions.
We are seeking patent numbers for this accessory along with the early recorded uses.