I've got a broody silkie with 13 silkie and bantam cochin eggs on day 9. In the last two days, I've also had a bantam cochin, a welsummer, and a barred rock go broody. I gave the welsummer a bunch of our mixed barnyard eggs to set today, but want to give the other mamas some eggs too. I'm thinking I'll split the bantam eggs and give half to the bantam cochin, but all the eggs I have left are questionable. So... if you were in my shoes, and wanted to hatch some babies, which would you set? Day-old, refrigerated eggs, or non-refrigerated bantam eggs that are between two and four weeks old? I could wait til tomorrow and give her all of tomorrow's eggs, but if there's a possibility that the older bantam eggs would hatch, I'd rather she hatched those. What are the OLDEST eggs you've hatched successfully?