I have a broody who has been sitting on eggs since April 22 which makes today like day 26. She started with 15 and is down to 6. Some have just been kicked out as shells, others she kicked out the whole egg. I broke open the whole eggs and all of them have had chicks in some stage of development. The last 2 were the day before yesterday and they looked fully developed although there was still a yolk sac about the size of a peanut m&m. Any suggestions or advice would be greatly appreciated.