It kind of looks like I've got 7 hens and a roo. I think one is a roo anyway. So here's my question. I'm wondering if I should buy an incubator, and if so how big. If I want to use him to hatch new chicks, how long can the fertilized eggs sit before going into the incubator? 7 eggs a day. do they have to go in the day they're laid, or maybe wait a day or two to get more? If they're laid on different days, then all put in together, I assume they don't all hatch the same day...or do they?