That's what I like.....their natural instinct is to peck and scratch for their food......they can do a number on my sand run. I get my coarse sand thru a contractor friend.....I spread the scratch all around so that they WILL stay busy!!How is sand for throwing down scratch for them to pick around in? Does it just disappear? I throw out some scratch every am with meal worms, and they love to scratch around in it. If it is a sand floor, it seems the grains would just sift on down.