My local organic grocery store carries Rock Island Fertile Extra Large Grade AA brown eggs, out of Petaluma CA. The sell by date is May 21st. I'm thinking that means they're pretty fresh. I have a hen who's broody, has been for two days, and I'd love to try her on a dozen of these. Maybe a dozen is too many though, now that I think of it. Also, should I try to remove her from the coop with the other girls and give her her own little isolation coop for setting, or just leave her in there until day 20, sneak out at night and take her and the eggs and put them in isolation then, so that if chicks hatch, the big girls won't kill them? (That was the mother of all run-on sentences, I know ) It's probably quite obvious, but I've never done this before and would love some words of wisdom from those who have experience with this process. Thanks!