I only have 1 hen ever since her sister died. I have chicks still growing up and she doesn't want to deal with them. When ever I open the pen door, she would just stay there and mope around. Usually she's all up and about, then flying out of the pen to play once I open the door. I think she's down because of loneliness, or something else. If you have any other ideas why she might be sad, please share! Also, if there are any ways to help her for a few weeks until the chicks can join her, share with me please! Younger photo of them. The one on the right died.