What does 'to truss' mean in falconry?

In falconry, the term 'to truss' specifically refers to the act of a bird of prey seizing its quarry while in flight, which is a critical skill for falconers to understand. This action involves the bird using its talons to grasp and secure its catch, demonstrating its hunting prowess and efficiency.

The term is commonly associated with the dynamics of hunting and the relationship between falconers and their birds. It highlights the importance of the structure and functionality of the bird's anatomy, particularly its feet and talons, which play an essential role in capturing prey. Knowledge of this term helps falconers appreciate the mechanics of a hunting bird's actions during dynamic flight situations.

The other options pertain to different actions or concepts unrelated to the specific act of capturing prey. Understanding 'to truss' in the context of falconry is crucial for both the safety and effectiveness of the hawk during hunts.