My pet chicken stats: 9mths old laying 1 egg a day, running, eating, friendly, pooping, all good then next day lazy,not eating, not pooping, stays in nest no eggs. I got her up and moving then she pooped really big. 3 days very little eating when offered and big pooping when put out of her nest. no eggs. put some bird antibiotic in her water as recommended by vet. SHe is better but not good I am at a loss as to how to help her. What is brooding and what about eggs that are stuck? I am new at this so spell it out.