I have used a bait/attractant successfully. Stake down a dead sheep in an open field and set a scent post set downwind nearby. Don't set the bait itself or you are liable to catch an eagle or hawk.

"All that the South has ever desired was that the Union, as established by our forefathers, should be preserved, and that the government, as originally organized, should be administered in purity and truth." – Robert E. Lee