Stalking requires a wolf who is adept with Smarts and Wisdom in order to track down the scents of various types of prey.
Chasing requires Speed and Agility to chase after the prey and wear it down.
Finishing requires Strength - having conserved energy throughout the hunt, letting the Chasers do their job, the Finisher makes a final effort to take down the tired prey, bringing back your dinner for the day.