I did close off my nesting box being my other hen tried to crowd in and lay eggs and actually broke a fertile one. My broody successfully hatched 2 on day 21 and now 2 more 3 days later. The first 2 are doing fine, the 3rd died and another just hatched and doesn't look to well. This is my 8 year old Cochins first time hatching eggs and shes doing well. I just don't know why the one died that hatched on day 23.Thank you for the suggestion closing off nesting box. If I go this route (seems alot less stressful) I will definately block off the nest.