Why do the female king quail pull out feathers from the lower back of the males?

Female king quails pull out feathers from the lower back of males as part of their courtship behavior. This action serves to stimulate the males and encourage them to display their mating readiness. The feather removal can also be a way for females to assess the health and vitality of potential mates, as robust males are better able to withstand such interactions. This behavior ultimately plays a role in their reproductive success and mate selection.