A 6" bird with a felt covered head and has plastic feet who cannot get his fill of water. 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!.