I have an 8 month old Easter egger that to my knowledge is healthy, haven't noticed any problems with her until today. Ears and drinks normally but this afternoon my daughter brought it to my attention that she has been sitting in the nest for an unusual amount of time. I checked on her before and yes she is still in the best (going on just over 4 hours now). I picked her up checked her over (spot check seems all fine) and put her on the coop floor. She proceeded to walk right back to the nest and sit down. She hasn't laid today, but is sitting on two plastic eggs. Could she be trying to hatch them?? What could be the issue?