The chicks go to my snakes, if there is yolk left on the chicks, I break it off and put it in a dish for my mice and rats. My mice are usually always pregnant or lactating, so it's good for them, plus they like it. Egg shells themselves get thrown to the dogs. If they die in the first week, or they never developed at all, I throw them in a pot of water and boil them up for the birds or the rodents.