Hi, I have some questions about broodiness. I have a couple of hens that are 4 to 6 mo old, they had just started laying and now all of a sudden they only want to sit on the nests on the other chickens eggs. I have no rooster so now I am confused as to why this is happening. I don't think they are laying now either. Wondering if I have done something wrong or is this just normal behavior??? Thanks in advance for any and all advice I could get on this subject