I have a silkie cross that has been sitting in a nesting box like she is brooding but there are no eggs under her. I check every day to see if there is any eggs and nothing. She doesn't come out of her box for anything and she acts like she's brooding. I'm very concerned about her.I hope she's no sick . if anyone else has had this problem with their chicken and know what might be going on with my hen please let me know.