I am new to raising chickens and am not sure what is going on with one of my hens. She has been in the nest box for several days and doesn't want to get out. From what I've been reading, I assumed that she is broody. When I finally got her out of the nestbox, I could see that her butt looked funny. I have taken a picture (sorry, its sideways). It looks bald and maybe a little puffy and is warm to the touch. Is this normal for a broody hen or is she eggbound or is it something else?? Please help because I don't know what is wrong with her. She is walking fine. She looks all puffed up and she wants to stay in the nest box all the time.