Drinking BirdOnce this classic bird from the 1950s starts drinking, he just won't stop! Simply moisten the drinking bird's head and place him next to a full glass of water and watch as he drinks from it for hours. And while it may seem like magic, the constant bobbing is actually based on the science of thermodynamics, which makes it that much more fascinating to behold. Bobbing bird is made of glass and plastic. Approx. 7" tall. Ages 8 and up (for use under adult supervision).