The Magic Drinking Bird

The classic drinking bird that is a super thirsty thermodynamic machine! You buy the drinks. Fluid inside condenses from the evaporation off the bird's beak, making it top heavy and dunking it back into the water. The condensate rejoins the liquid pool in the bird's bulb, and he tips up again. Process continues indefinitely.WARNING! The fluid and dye inside the bird can permanently stain, and the bird's glass body can easily be broken. Children are fascinated by the bobbing bird, and the educational possibilities are great. But they should watch it, not fondle it!!