o.k. here's the scenario. My five and a half week old babies are in their brooder in the basement. Plenty of room and I just recently changed the light from heat to regular. They are growing like weeds. Tonight I'm in the bathroom which is on the other side of where they are and I hear tapping/pecking . I go around the corner and here's the six of them pecking away at the drywall and I'm pretty sure eating it ! I put a piece of plywood in against the drywall so I think they'll be deterred tonight. Is the drywall going to hurt them?