Resumen de A violin cry
Here, Dieter Damschen's photograph of a crane is featured taken Lake Ganzen in Germany. The bird has an extraordinary adaptation. Its windpipe, or trachea, is three or more times as long as would be expected for a bird of this size--even one with a long neck. But different species of cranes have different amounts of coiling, and yet they can all make extremely loud calls. The coils vibrate against the sternum in a similar way to the bridge on a stringed instrument, and the vibrations are amplified by the lungs. A better analogy, therefore, is a violin, not a trumpet-- which may or may not be something to ponder if one should hear the cry of these distinctive birds.
