Which activity involves a hawk stretching one wing over its leg while crouching over food?

The activity in which a hawk stretches one wing over its leg while crouching over food is known as mantling. This behavior is a protective instinct that falcons and hawks exhibit when they are eating. By mantling, the bird shields its food from potential threats and rivals, effectively covering it with its body and wings. This action not only helps to deter other predators or other birds from stealing the food but also allows the hawk to consume its meal without interruption.

In contrast, moult refers to the gradual shedding and regrowth of feathers, a process unrelated to feeding behavior. The phrase "to make into" does not correspond to any recognized falconry action, and "to fly at mark" refers to the act of a bird pursuing or targeting an object, usually during training, rather than a behavior associated with feeding. Understanding these distinctions is crucial for anyone studying falconry, as behaviors like mantling play a significant role in the natural instincts and survival strategies of raptors.