I agree moving them so separated by wire from the flock is simpler in the long run.Thank you, kind folks, I am on my way out to the barn to set up a broody cage in the coop. I have a large wire dog crate already covered in hardware cloth so the chicks will be utterly protected. I just wanted to make sure I would be doing the right thing, and it sounds like definitely. I'll move her tonight. Again, many thanks for your timely responses.
I've only had one broody I let hatch, but read a bunch.
Moving them can be tricky tho.
I moved mine and she was NOT happy, but I had just fake eggs in her new nest.
It took her a good 6-8 hours to settle back onto that nest.
After she stuck there for a couple days, then I gave her fresh fertile eggs.