I have a number of chickens and have gotten them a few at a time. I noticed that they seem to hang out with their brooder mates a bit more then the others. With that being said I had a Leggbar and black Marans that were a brooder family. My Leggbar just passed recently and my Marans doesn't seem to be doing that well. She is always by herself and now her comb is getting pale. She is eating and drinking and her poo is good. Is it possible that she is mourning?