Sand vs pine shavings for 2ish week old chicks? My husband wants to do the whole brooder in sand. I made my chicks a dust bath yesterday, one of them was shaking her head a bit. I checked for mites and lice, I don't see anything. But today a 2nd chick is shaking her head, she looks fine too. Read on a forum some people replaced the pine shavings with sand. Everyone is eating, drinking, running around and sleeping normal. Any advice? Should I get rid of the pine shavings and go full sand with some wood ash and diatomaceous earth? Why else would they be shaking their heads, even while they are sleeping?