When a hood is placed on a bird of prey, it goes into a state of relaxed alertness known as "mantling." In this state, the bird's feathers are fluffed out, its wings are held close to its body, and its head is tucked in. Mantling is a natural defense mechanism that birds of prey use to make themselves appear larger and more intimidating to predators. By inducing mantling, hoods effectively calm and control the bird while making it easier for the handler to interact with it.
Overall, hoods play an important role in the management and training of birds of prey by helping to ensure their safety and well-being while facilitating their handling and use in certain activities, such as falconry and rehabilitation.