Hi all, I have five chicks, all 1 week and 2 days old. They've been healthy. This morning, I put a bit of sand (some stuff from the desert in New Mexico that my sister gave me) into a mason jar cap for them to play with. Now, they are all huddled far away from their heat source together, which tells me something isn't right. Did they eat the sand and hurt themselves? Is there anything I can do that will counteract this? When I interact with them they become more lively, but their huddling definitely indicates to me that they're not feeling well. I did bring the heat lamp up a bit in case they are too warm. Thanks!