Which hunting practice is aimed at ensuring ethical kills?

Developing strong marksmanship skills is essential for ensuring ethical kills in hunting. Ethical hunting involves making clean, quick kills to minimize suffering for the animal. Strong marksmanship skills enhance a hunter's ability to accurately hit vital areas of the game, thus ensuring that the animal is dispatched humanely and efficiently. This practice not only reflects the hunter's respect for wildlife but also promotes conservation efforts by preventing unnecessary suffering and ensuring that populations remain healthy.

Other practices mentioned, such as using electronic devices, hunting with support teams, or displaying trophies, do not directly contribute to the ethical aspect of killing. While each of these may have their own merits in different contexts, they do not specifically focus on improving the precision and responsibility of the hunter when taking a shot. Therefore, developing marksmanship is the most relevant practice for achieving ethical kills.