I am just sick. I'm so new at this, as you will be able to tell. I had 3 different hens laying eggs and sitting in the same nesting box. One chick was hatched and one hen and chick left the nest, 2 hens still sitting in same box. Two days later another chick was hatched and one hen and chick left the box. Two days after that another chick ha t ched, the last hen and chick left the nest Friday leaving 7 eggs. This morning I saw a chick hatching, no momma. This evening I went up to the hen house and there were 4 partially hatched chicks dead and crawling with flies. Evidently, the eggs had all been layed at different times and I guess the hens thought they had were finished as soon as they had one chick. I am so upset. Such a waste of life. How can I prevent this in the future?