I started out with 1 broody hen. Because I do not have a rooster I decided to buy some Rock Island Fertile eggs and place them under her. After I did this another one went broody and they have been side by side sitting on the eggs. They don't seem to mind each other at all and I have seen them many times when one is looking the other way they will steal some eggs and place them under them! I have a video clip of this from my hen house cam that I will try to upload to my computer at some time. I purchased these eggs at Lucky supermarket (in the refrigerated section where they sell all of their eggs) the day they were put on the shelf. They were laid 2 weeks prior to this. I let them set in my home and reach room temperature prior to placing them under my broody hen. Fast forward to today and I have 3/12 viable eggs on day 20/21. 6 of the other eggs were smashed by either them or other chickens. I believe that this is because store bought eggs have thinner shells. The other 3 stopped developing during the early stages. This morning when I went out there I saw one had already pipped through its shell and I can hear chirping out of another! I cannot wait to meet the new chicks. I am letting nature take its course and will allow my hens to do it all. The main thing that I am concerned about is how the two hens continue to roll the eggs even after day 18. Oh and also I hope that they do not fight over the baby chicks once they hatch. I will keep my fingers crossed that they hatch and are healthy! I will attach photos if their is success! Does anyone else have any experience on either hatching store bought eggs or on two broody hens hatching the same clutch of eggs?