I acquired 5 RIR hens and 1 RIR rooster from a lady whose coop was not winterized. I brought them home last night and put them in a seperate pen than my 12 other hens and 1 rooster. This morning, I noticed one of the new hens laid an egg and immediately the other hens ran over and ate it. Is this normal for chickens to do under stress? I called the lady I got them from and she said they had never done this before. What can I do to stop them from eating their eggs? Thanks in advance for any advice!