In avian anatomy, what is the term for a hawk's train?

The term for a hawk's train refers specifically to the tail of the bird. In avian anatomy, the tail plays a crucial role in flight and maneuverability. It is made up of a series of feathers at the rear of the bird and is essential for steering, balancing, and even braking during flight. The arrangement and condition of the tail feathers can greatly affect a hawk's performance in the air, especially during hunting and quick turns. Thus, in the context of the question, the correct answer highlights this important aspect of a hawk's physical structure and functionality.