My girls (there are 5) have been laying 6-7 eggs a day in the coop. recently one started sitting on her eggs in the coop and now they are laying somewhere else and I can't find where. I read on here that I should put an egg in there to let them know that it is okay to lay in there. My question is...can I put a store bought egg since I can't find one of thiers? I know an egg is an egg but I wasn't sure if they could tell the difference. Thanks in advance for your help.