I have 26 RIR 5 week old chicks. When I went out to the coop today I found that almost all of them had very, very full crops and I noticed that a full box parakeet grit was spilled out on the floor and had completly vanished. I didn't notice this until after I gave them their first ever treat. (Cherry cheese cake yogurt). Will that much grit hurt em? and what about the yogurt. That's o.k. right?.?