I harvest by killing.

From Meriam Webster's

harvest verb
harvested; harvesting; harvests
Definition of harvest (Entry 2 of 2)
transitive verb

1a: to gather in (a crop) : REAP
harvesting corn
b: to gather, catch, hunt, or kill (salmon, oysters, deer, etc.) for human use, sport, or population control


The verb harvest indicates that I am not just killing, but also dressing the game and collecting the hide, fur, skull, antlers, and meat for use. I see people that just "kill" coyotes without harvesting them. They leave them for dead. Gut shoot a deer and have it run away and die days after you gave up looking for it. You killed. You didn't harvest it.