Im going to incubate and set some golf balls down to see which hens is "broodiest" so that I can have her raise the chicks when they hatch. I have four silkie hens, and I hear they are famous(in some stories, infamous) for going broody. But none of mine will. Is there a certain age? Is there something I have to do to get this behavior going? Please help, I am scared my other chickens will hurt the chicks if they don't have a "mother" to protect them.