Yeah I figure if any hens die from whatever causes I’ll just grab a days eggs and throw them in a stryophom box I have. I just put one of those rolled up clearance led Christmas lights strand I got a couple years ago., if it starts to get to warm I unravel more of the lights and lay them on thr ground outside the box, to cold, bring more in. Highly advanced system I’m working with. Maybe it’s getting to dry in there, add a scotch glass with some water. I’m sure I could find an incubator for cheap but meh, I really don’t need more chickens