What kind of chicken is this? What is the scientific name as shown in the figure below:

From the picture, the breed of this chicken is Bailaihang chicken. White Leghorns, a well-known egg-laying breed originated in Italy and widely distributed in the world, has been raised in China for decades, and the chicken is small and delicate. The whole body feathers are white and close. The crown is big and bright red, the cock's crown is thick and upright, and the hen's crown is thin and leans to one side. Beak, shin, toe and skin are all yellow. Ear lobe is white. Early maturity, no nesting, high egg production and low feed consumption.