Kill em all as far as I'm concerned. Went on a guided hunt with Yellowstone Outfitters in Wyoming in 2001 on the Thorofare River and upper Yellowstone River. Was awesome then. The group I went hunting with had a 10 of 11 elk harvest. My buddies friends went with them in 2009 and only had a 1 out of 10 elk harvest. Don't even know if there in business any more with the massive elk, deer, and moose kill off from the wonderful anti-hunting groups beloved mascot.