I wanted to find something to keep the chickens from hanging out in the coop all day, so I got an onion bag, filled it with old bread and hung it from the roof of the run, at their head level. It took them a couple days to figure out what it was and get over their fear of it swinging, every time they bumped into it. Now that they've caught on to the concept, they peck at it all day, until the bread is gone. Next time I fill it, I'm going to raise it a few inches over their heads to make it more of a challenge for them although, it's pretty funny to watch them dodge it as it swings back towards their head, after they peck it.