What specific element is not essential to include in a hunting plan left with someone?

In a hunting plan, the primary goal is to ensure safety and provide critical details that can assist in locating a hunter in case of an emergency. While knowing the number of game a hunter intends to harvest can be useful for personal planning and legal compliance, it is not a critical piece of information needed for someone else to ensure the hunter's safety.

On the other hand, the location of the hunting area is essential as it allows others to know where to look for the hunter. Expected return time is crucial for determining when someone should start worrying if the hunter hasn't returned, and emergency contact information is vital for alerting authorities or family members if there is a situation that requires assistance. Thus, the number of game to be harvested is less important compared to those safety-centric details that form the core of a responsible hunting plan.