I think it's harder to find people willing to take silkie males. At least an Orpington roo makes a nice sized meal. I know it must sound harsh, but I feel it's better they live a good but short life free ranging rather than be culled or grown out in poor living conditions.The mama heating pad for over flow is a good idea. I do separate her once chicks are hatching I move her to a area sectioned off with a dog pen so she can have her own area, she lets me know when she is ready to bring chicks out usually around 1-2 weeks old.
I don’t let any of my girls out in the yard to free range unless I can be right there to watch over them, Usually a few hours in the evening. My boys have been free ranging during the day now that the weather is better. I noticed since putting the boys out to range my girls are so much more laid back with me coming up to chat and be petted. I’m trying to find homes for all these excess Silkie boys but nobody is interested in roosters.