I need some help...to the experts I go....my son's pre school teacher has an incubator, she wants some eggs for it, NOW...how do I get them to her...do you have to get them warm from the nest immediately to the incubator? Or can they sit on the counter over night THEN to the incubator? I have not done this, none of my hens are broody, or have ever been, they are less than a year. I have two roos, so I know they are most likely all fertilized. I just didn't know how long they can cool down, to still be viable...help!