I can't believe this but I have 5 hens wanting to sit.......2 are on the same nest. They just started laying 2 months ago, should I let them sit....I had one who should have chicks this week, that was fine but now I have 5 more who won't get off the eggs.. I thought Barnevelders weren't keen on sitting? How do you stop them? I keep taking them off but they go right back. Any ideas?