So, I found a nest of guinea egg 3 weeks ago and stole 10 eggs and placed them in a box in my chicken coop. I was hoping a chicken would become broody n set on them. So yesterday finally Gertrude decided it was time n sure nuff is setting on eggs. My concern is are the eggs still viable? I would switch them out with new eggs but the guinea nest was found by varmints and is long gone.