What is the primary factor that helps develop hunting skills in proficient hunting hawks?

The development and encouragement of a hawk's inherent instinct for hunting is crucial for proficient hunting. This instinct is part of the bird's natural behavior, and fostering it allows the hawk to hone its skills effectively. Training that emphasizes this instinct helps the bird to learn how to track, ambush, and capture prey, which is fundamental to successful hunting.

While factors like hunger can certainly motivate a hawk to hunt, it is the instinctive behavior that governs how the bird hunts. Sentimental attachment and obedience to the falconer are important for the bird's overall relationship with the falconer but do not directly develop hunting skills. The mastery of the hawk's savagery, or "Yarak," is relevant in understanding the hawk's behavior but is not the primary factor in developing effective hunting skills. Thus, emphasizing and nurturing the hawk's natural instincts stands as the most effective approach to improving its hunting proficiency.