My 17-wk (NON-LAYING) pullets have taken to laying in the sand that is currently in their run. I move the coop and run every once in a while and right now, it's sitting on sand. There are little wells where they sit--not sure if they're "welling" them out or what. What's that about?? I've never seen them do this before--NEVER lay down on the ground. They're not laying on their sides--just sitting down as if roosting...? They've always been in the coop and have only been let out to free-range once/week so far (dangerous--lots of feral cats and hawks). They roost at night up in the coop on the roosting poles (I check on them! ) Should I worry? The reason I ask is because I just took away the regular watering can because I saw that at least half of them are using the bucket with the nipples that came with the coop. But I didn't see ALL of them do it and now I'm hoping that this isn't a sign of dehydration or something... I posted about this in the feeding forum but no response yet.