Roosters are males of domestic chickens, and as a member of the domestic poultry, roosters are widely known for their distinctive appearance and unique crowing sound. Usually has bright feathers, especially the colorful feathers on the neck and tail, and a fleshy crown on the head with bright colors. The body size is larger than that of a hen, with well-developed muscles, especially in the chest and legs. The beak is hard and suitable for pecking. Strong feet with sharp claws, suitable for scratching and searching for food on the ground. In addition, the tail is long and curved, often raised high, showcasing its majesty. The most well-known behavior is morning singing, which is a territorial declaration and courtship behavior of them. The sound is loud and can spread far.