Either deer bait had been placed on the platform so it's smell could travel farther than by spreading it on the ground or, the guy had some honey oats granola bars in his pocket.
everyone knows the bear went over the mountain to see what he could see. http://www.youtube.com/watch?v=kO1rfdDjNGI&p=DBD8B55AAE1E5EE4&playnext=1&index=8