We have a consistently broody hen that is a year old. She has laid for about 3 weeks of her life because she is simply always broody. We finally put eggs under her. She broke 3 eggs (ate 2) and a few rotted after being splattered with goo from the broken eggs. She has 3 left that are due to hatch on Sunday. She decided yesterday to stop sitting on the eggs. She has been separated from her flock mates in our "broody coop", so that isn't the problem. I'm very frustrated with her right now. What causes them to stop sitting this late in the game? Are the eggs bad or is she pointless as a broody?