i have a hen very tame loves games but when you let her out she runs backwards and drops hear head and shakes it as if she's cleaning her beak but her head never touches the floor or anything she's doing it alot now we call it her moon walk but im getting worried about it now she's eating and laying fine but is a very broody hen she's always sitting the eggs my husband said she has new chest feathers coming threw that might be irriatating her has anyone else seen it before blanche is a brahma breed