Today I saw my EE, who just turned 4 weeks old, eating some wood shavings... We don't buy them. We get them from a friend of ours who makes different wood furnitures, for free. (the shavings not the furniture) Is this bad? If they've been doing this for a while now wouldn't there be problems by now? I felt her crop and I barely felt anything, so it's not impacted. Does this mean its time for grit? I would like to know to help prevent any future problems. Thank you.