Hen has been on eggs 26 days. 1 hatched on day 23 and one on day 24. Chicks are in unheated barn (it has gotten cold). About day 15 she kicked out 4 eggs. I thought all the eggs would be at same stage of development. they were not. One had a formed chick while the others seemed to be a week behind. Is this possible? It is not likely that eggs got stuffed under her later. I pulled an egg at day 25 and unfortunately had a formed chick and it was moving!!! It was about the same as a reject on day 15(seemed to need another week) Is it possible they did not all develop at same time? It has been cold (some nights as low as 10). I let her continue to sit on the remaining eggs since the one appeared to be still viable just behind.... Hen hasn't move off nest to my knowledge since 11/30. I take food and water to her.