my barred rock disappeared four weeks ago. she popped up last week with six fuzzybutts. i looked behind the fence and saw that there is still a whole pile of eggs back there. she ran back there to sit on them. was she protecting them because she is still hatching them? haven't had any new babies since a week ago. i have two other hens that have to have been adding to the pile. should i let her keep sitting or is she sitting on a pile of eggs that are bad?