My broody girl has been trying to go broody for about the last 2 weeks. Everytime I am pretty sure she is gone broody I put a peice of fence between her and the others so she can be alone to brood. Once I do this she comes off her nest and eggs and sits pacing back and forth by the fence line. So I end up letting her out and she never goes back to the nest. She is back at the nest again noticed her there today sitting there ready to hatch some eggs. So I do need to seperate her from the rest so how should I do it. She only has fake eggs under her now I would be adding real as soon as I was for sure she was sitting. Should I wait awhile before putting the divider up?