I made the mistake of trying to get 2 clutches going at the same time. My Black Australorp had been setting on several eggs in the brooder coop for almost a week. I put an orpington in with several other boxes to choose from. After 3 days I didn't find any eggs, and the Orp was really anxious, so I let her out. Now I find 3 more eggs under the Australorp. There is a good chance that most of the eggs are fertile. Will mom leave the newer eggs after she gets hers to hatch? Or should we take the chicks out so she continues brooding?