Check the temperature under it, Make sure it is high enough above the bedding too, Just because the temperature on top of it is okay does not mean it isn't too hot under it. Under it is where it matters what the temperature is,Ok, I’ve made a DIY mamas heating pad/hen cave. I scooped a bunch under there but only a few stayed. I also purchased a 100W reptile light.
They seem terrified of the pad. I’m terrified to not have another heat source. Will they learn to go under out of necessity if I remove the heat lamp?
You can see them lined around it.