Rooster chicks, or cockerels, are male chickens that come into the world encased in a small egg, as all chickens do. The transformation begins when the chick breaks free from its shell, a process known as hatching. This first step of life is a significant milestone and marks the beginning of the chick's transformation into a rooster. This journey from a fluffy chick to a crowing adult is filled with intricate details that emphasize the marvel of nature's processes. A Rooster Chick Sticker.