I have 8 laying hens in quarantine yet & today after I cleaned their cage & put in more fresh straw, I sprinkled some Stall Dry around & they started pecking at it? I think they were eating it! Isn't that bad? What's going to happen to them? Why would they want to peck at it & eat it? They have not done this before. I feed them the 16% layer crumbles & for a treat they get bread & scrambled eggs. Is this their way of asking for grit?