What does "mantle" refer to in falconry?

The term "mantle" in falconry specifically refers to the behavior exhibited by a bird of prey, particularly when it crouches defensively over its kill. This action serves several purposes: it protects the food from potential scavengers or rival predators and helps keep the bird's body warm during the feeding process. When falconers observe this behavior, they recognize that the bird is not only consuming its prey but also displaying a natural instinct to safeguard its meal.

While the other options might relate to various behaviors or practices in falconry and wildlife, they do not accurately define the term "mantle." For instance, hiding from predators and resting when not hunting do not capture the protective aspect integral to the act of mantling. Similarly, a method of feeding, while it may involve elements of behavior, does not convey the specific action of protection that the term "mantle" embodies in the context of a bird's feeding behavior. Thus, option B is the most accurate representation of what "mantle" refers to in falconry.