My little bantam took up the habit of eating sand, lots and lots of sand. I took her in, the operated and took out 1 pound, that is right, a pound out of her crop. I fed her by a tube for a week with a special diet. Her crop was in much better shape so I let her out under supervision, I had been keeping her in a dog kennel. She did well for two weeks and now is back to eating sand to the point where her crop is blocked and swinging. Help please.