The Famous Drinking Bird, Pkg. of 2

The Happy Drinking Bird is So Popular, We've Made it Our (Un)Official Mascot

The infamous Drinking Bird has been popular among children and adults for years. Once Drinking Bird's head is dunked in water, it will begin bobbing back and forth taking "drinks" with every bob.

Drinking Bird works using properties of thermodynamics, converting thermal energy into mechanical energy. The head and lower body of the bird are hollow glass chambers that are connected by a glass tube. The tube dips into the liquid (methylene chloride) in the lower body allowing the liquid to move up the tube when the temperature of the head is slightly cooler.


As the drinking bird tilts over, the liquid is eventually removed from the lower body and the lower portion of the tube. The vapor above the liquid then rushes up the tube which equalizes the pressure in the head and body. With this, the center of gravity returns to the lower body and with one swift motion, the bird swings back up away from the water.

Drinking Bird comes wearing a blue hat and red feet. The liquid comes in red or blue. Please let us select the color for you.
*Caution: If broken, dye will stain!

Click here for a great drinking bird activity.