El Silbón (The whistler) is a legendary figure in Colombia and Venezuela, associated especially with Los Llanos, described as a lost soul. The legend arose sometime in the middle of the 19th century.
According to the legend, the spirit is a youth who murdered and disembowelled his father for killing his wife, saying that she was a “slut”, and that she was asking for it. Afterwards, his grandfather ordered the youth to be tied to a post in the middle of the countryside, and lashed him until his back was destroyed. His wounds were then cleaned with alcohol and he was released with two rabid, starving dogs set upon him. Before releasing him, his grandfather condemned him to carry the bones of his father for all eternity.
It has a characteristic whistle that resembles the musical notes C, D, E, F, G, A, B in that order. Rising in tone to F, then lowering to B. It is said that when the whistling sounds close, there's no danger, and the whistler is far away, but when the whistling sounds distant, it means it is nearby. It is also said that hearing the whistling foretells one's own death, and one may hear it anywhere at any time. In this situation, the only thing that can save the victim is the sound of a dog barking, as it is the only thing it is afraid of, a chili, or a whip. The spirit tends to take revenge on womanizers.