For the past couple of weeks, our RIR doesn't seem to want to roost with the Barred Rocks in the coop. When we go to secure their coop at night, 3 to 4 nights a week we'll find her in the corner of their yard on the ground instead of in the coop on the roost. We'll go ahead and put her up in the roost and she'll stay there the rest of the night. Is this normal? Could it be the other hens are making fun of her? Is she lazy? What can we do to fix it or will it just fix itself? Tonight, she was in the coop.