I have a Barred Rocks hen that is 1 year old who hasn't moved from her nesting box. This is the first time I have had a chicken appear ill, so I am not sure what I should and shouldn't do. Any advice? I tried to pet her and she fluffed up her feathers and seemed to try to make some sounds at me, but no sounds came out of her, just her moving her beak a bit. She seems very mellow . . . I wonder if she is brooding?? I don't have a rooster, but I have heard that they may do this in the spring anyway.