I purchased a couple of 8+-month old Faverolles hens a couple of weeks ago. They had been kept in a barn with lots of other hens. I have a sand bottom coop, and they started eating the sand (inside and outside of the coop). I have grit available to them, which they ignore. I have layer pellet, which took them a few days to figure out. Now they're still eating the sand (which was sprinkled with DE) like it's food from Heaven! Last night it really rained and the chicken yard is wet. Obviously the sand coop gets some wetness inside when it rains like that and chickens are running in and out. I spread a bale of hay all around outside in the run, to absorb some of the wet, and discourage the hens from drinking from the little puddles (am treating them for a respiratory infection and put antibiotic in their drinking water inside the coop). I don't know of a thing I can do to discourage them from eating the sand. Guess that sooner or later they'll get their fill??? Any ideas?