Our 7 month old partridge rock all of a sudden seems to be broody. She will sit in a nest box for hours with no egg in it. There will be an egg in the next box but she doesn't sit on it. If I try to get her out of the nesting box she will peck at me and not move. Should I continue to try and scoot her? She does get out to eat snacks but will go back in and nest. How long will this last and will she quit laying for awhile? We only have 3 hens.