What are primary feathers in birds of prey?

Primary feathers are the long flight feathers located on the outer part of a bird's wing. They play a crucial role in flight by providing the necessary lift and thrust. These feathers are typically stiff and narrow, enabling birds of prey to achieve speed and agility while flying. Understanding the structure and function of primary feathers is essential for falconers, as these feathers are integral to a bird's ability to maneuver in the air.

The other options describe different types of feathers or their functions that do not pertain to the primary feathers. Feathers on the bird's head refer to different types of plumage, while tail feathers are primarily involved in steering and balance during flight. Down feathers, on the other hand, serve to provide insulation and warmth, which is not related to the primary flight feathers. This distinction emphasizes the specialized nature of the primary feathers in the context of flight in birds of prey.