use a bird feeder with black oil sunflower seeds very near your bait pile and elevate it. Flittering chickadees do wonders for attracting cats to close the deal.
If roadkills are plentiful I put one in the nearest opening that will attract crows and eagles. That greatly decreases the time it takes to attract cats (and wolves). The real bait pile is under pines/balsams and covered with boughs.