I'm going to pick up 2 laying hens today and their eggs are fertile. I thought it would be cool to try and hatch a few eggs as a summer project this summer for my 6 year old boy (I also have a 2 year old girl). We already have chickens, but no roosters, so I thought this would be a fun and exciting experience for the kiddos. The lady we're getting the hens from is also giving us her incubator since she's downsizing her flock. What do i need to do to get these eggs to hatch (turning, temp, humidity)? How long do I have until the hens are not fertile? How long can the eggs sit out before putting in the incubator? How long does it typically take to hatch? Thank you in advance for all your answers and comments! I can't wait to get my 2 new girls!!