Rooster other calls as well, and can cluck, similar to the hen. Roosters occasionally make a patterned series of clucks to attract hens to a source of food, the same way a mother hen does for her chicks. Rooster crowing contests are a traditional sport in several countries, such as Germany, the Netherlands, Belgium, the United States, Indonesia and Japan. The oldest contests are held with longcrowers. Depending on the breed, either the duration of the crowing or the times the rooster crows within a certain time is measured. A capon is a castrated rooster. In the caponization procedure, the bird's
S-wave S-wave In seismology, S-waves, secondary waves, or shear waves (sometimes called an elastic S-wave) are a type of elastic wave, and are one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves. The S-wave moves as a shear or transverse wave, so motion is perpendicular to the direction of wave propagation. The wave moves through elastic media, and the main restoring force comes from shear effects. These waves do not diverge, and they obey the continuity equation for incompressible media: Its name, S for secondary, comes